Since all three cars have the same final velocity, the one with the greatest mass, which is car X, will have the most amount of momentum after 10 seconds.
The amount of momentum each car has after 10 seconds will depend on both its mass and its velocity. Since all three cars experience the same net accelerating force, they will all have the same acceleration. However, because car X is more massive than car Y, which is more massive than car Z, it will take more force to accelerate car X to the same acceleration as car Y and car Z.
Therefore, after 10 seconds, all three cars will have the same final velocity (assuming they all started from rest), but car X will have a greater amount of momentum than car Y and car Z because of its greater mass.
The formula for momentum is:
momentum = mass x velocity. Since all three cars have the same final velocity, the one with the greatest mass, which is car X, will have the most amount of momentum after 10 seconds.
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what formula ap physics 1 equation sheet?
The College Board provides an official formula sheet for the AP Physics 1 exam, which includes several different formulas like kinematics, Newton's law and many others.
1) Kinematics:
v = vo + at
x = vot + [tex]1/2at^2[/tex]
[tex]v^2[/tex] =[tex]vo^2[/tex]+ 2a(x - xo)
2) Newton's Laws:
Fnet = ma
Fg = mg
Ff ≤ μFn
3) Work, Energy, and Power:
W = Fdcosθ
K = [tex]1/2mv^2[/tex]
ΔU = -W
P = W/t
4) Systems of Particles and Linear Momentum:
p = mv
Fnet = Δp/Δt
I = [tex]mR^2[/tex]
5) Rotational Motion and Torque:
τ = Frsinθ
α = Δω/Δt
KErot = [tex]1/2Iω^2[/tex]
6) Oscillations and Gravitation:
T = 2π√(L/g)
Fg = [tex]G(m1m2/r^2)[/tex]
7) Waves:
v = fλ
v = √(F/μ)
Note that this list is not exhaustive and other formulas may also be relevant to the AP Physics 1 exam. It's important to review the entire formula sheet and understand how each formula is derived and applied in different contexts.
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If a man has an average useful power output of 40.0 W, what minimum time would it take him to lift forty 15.0 kg boxes to a height of 1.00 m? The value of g is 9.80 m/s2
The minimum time it would take the man to lift forty 15.0 kg boxes to a height of 1.00 m with an average useful power output of 40.0 W is 147 seconds.
The work done in lifting one 15.0 kg box to a height of 1.00 m is given by:
W = mgh = (15.0 kg)(9.80 m/s²)(1.00 m) = 147 J
The work done in lifting forty boxes is:
W_total = (40 boxes)(147 J/box) = 5880 J
The time required to do this work is given by:
t = W_total/P = 5880 J/40.0 W = 147 s
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Starting from rest, a 4-kg block slides 10m down a frictionless 30° incline.
Determine the work done on the block by the force of gravity, the normal force, the net force, and the KE of the block at the end of the 10m slide
Answer:
The work done on the block by the force of gravity is 392.4 J. The work done by the normal force is zero. The work done by the net force is equal to the change in kinetic energy of the block. At the end of the slide, the block has a kinetic energy of (1/2)mv^2, where v is the speed of the block.
Explanation:
For each beaker, determine how much the temperature changed in the first 100 seconds and how much it changed between 500 and 600 seconds. Compare this to the temperature difference between the beakers at the start of each interval.Value0–100 s interval500–600 s intervalBeaker A temperature changeBeaker B temperature changeTemperature difference between Beaker A and Beaker B at 0 seconds.Temperature difference between Beaker A and Beaker B at 500 seconds.
For the 0-100 second interval, the temperature change for Beaker A is 17.7 degrees and the temperature change for Beaker B is 17.7 degrees. This means that the temperature difference between the two beakers at the start of this interval is 0 degrees (17.7 - 17.7 = 0).
For the 500-600 second interval, the temperature change for Beaker A is 1.5 degrees and the temperature change for Beaker B is 1.5 degrees. This means that the temperature difference between the two beakers at the start of this interval is also 0 degrees (1.5 - 1.5 = 0).
The temperature difference between Beaker A and Beaker B at 0 seconds is 90.0 degrees, and the temperature difference between Beaker A and Beaker B at 500 seconds is 7.4 degrees. This means that the temperature difference between the two beakers decreased by 82.6 degrees (90.0 - 7.4 = 82.6) over the course of the first 500 seconds.
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What is convection give 5 examples?
Convection is heat transfer through fluids. Examples: boiling water, sea breeze, hot air balloon, atmospheric convection, heating a room.
Convection is a course of intensity move that happens in liquids, like fluids and gases. It includes the development of hot and cold liquids because of contrasts in their densities. At the point when a liquid is warmed, it turns out to be less thick and ascends, while colder, denser liquid sinks. This makes a roundabout movement that moves heat starting with one piece of the liquid then onto the next.
The following are five instances of convection:
Bubbling water in a pot: The warmed water at the lower part of the pot rises and is supplanted by cooler water, making a course design.
Ocean breeze: During the day, land warms up quicker than water, making air over the land rise and cooler air from the ocean to move in, making an ocean breeze.
Sight-seeing balloon: The warmed air inside the inflatable ascents, making the inflatable light and making it lift off the ground.
Climatic convection: Daylight warms the World's surface, making warm air rise and cooler air to sink, bringing about the arrangement of mists and weather conditions.
Warming a room: A radiator warms the air around it, making it rise and making a course design that circulates the warm air all through the room.
In synopsis, convection is a course of intensity move that happens in liquids, where hotter, less thick liquids rise and are supplanted by cooler, denser liquids. This makes a roundabout movement that moves heat starting with one piece of the liquid then onto the next, and should be visible in regular models like bubbling water, climatic convection, and warming a room.
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Reflection about how you're going to relate low of acceleration to your life?
Reflection is the process of thinking about something and analyzing it in relation to one's own experiences and perspectives.
In the context of the law of acceleration, this means considering how this law affects our everyday lives and the decisions we make.
One way that the law of acceleration relates to my life is through my use of technology. The law of acceleration states that an object's acceleration is directly proportional to the net force acting on it and inversely proportional to its mass.
This means that as technology becomes more advanced and lighter in weight, it also becomes faster and more efficient. This directly affects my daily life, as I rely on technology for communication, entertainment, and work.
Another way that the law of acceleration relates to my life is through my experiences with transportation. Whether I am driving a car, riding a bike, or taking public transit, the law of acceleration is at play. Understanding how acceleration works allows me to make informed decisions about how to safely and efficiently get from one place to another.
Overall, the law of acceleration is a fundamental principle that affects many aspects of our daily lives. By reflecting on how it relates to my own life, I can better understand the world around me and make more informed decisions.
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the gas found in the largest concentration in the troposphere is
The gas found in the largest concentration in the troposphere is called nitrogen (N2).
The Earth's atmosphere is composed of a mixture of gases, primarily nitrogen (N2), oxygen (O2), and argon (Ar), as well as trace amounts of other gases such as carbon dioxide (CO2), neon (Ne), helium (He), and methane (CH4), among others.
The concentration of each gas varies throughout the different layers of the atmosphere, with some gases being more abundant in certain layers than others.The troposphere is the lowest layer of the atmosphere, extending from the Earth's surface up to an altitude of about 7 to 20 kilometers, depending on latitude and season.
The troposphere is the layer in which weather occurs, and it is also where most of the Earth's biosphere is located, including trees, plants, and animals.
Nitrogen is the most abundant gas in the troposphere, making up about 78% of the volume of the Earth's atmosphere. This means that out of every 100 molecules in the air we breathe, about 78 of them are nitrogen molecules. Oxygen is the second most abundant gas in the atmosphere, at about 21% by volume. Other gases found in smaller concentrations in the troposphere include argon, carbon dioxide, neon, helium, and methane, among others.
The abundance of nitrogen in the atmosphere is due to several factors, including the fact that nitrogen is a relatively inert gas and is not easily reactive with other elements or compounds. Nitrogen is also continuously supplied to the atmosphere through biological and geological processes, such as the nitrogen cycle in soil and the release of nitrogen from volcanoes and geothermal vents.
Overall, the abundance of nitrogen in the troposphere is important for the balance of the Earth's atmosphere and the maintenance of life on our planet.
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what is newtons first law example
Newton's first law of motion, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue to move at a constant velocity, unless acted upon by an external force.
An example of Newton's first law is a book lying on a table. The book is at rest and will remain at rest unless an external force acts on it, such as someone picking it up or a strong gust of wind blowing it off the table. Once the external force is applied, the book will move according to the direction and magnitude of the force.
Another example is a hockey puck sliding on the ice. If there were no friction, the puck would continue to slide in a straight line at a constant velocity. However, due to friction, the puck slows down and eventually comes to a stop, unless another external force is applied to keep it in motion.
In both examples, the objects will remain at rest or in motion with a constant velocity, according to Newton's first law, unless acted upon by an external force.
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Two skaters stand facing each other. One skater’s mass is 60 kg, and the other’s mass is 72 kg. If the skaters push away from each other, the 60 kg skater travels at a lower momentum. their momentum is equal but opposite. their momentum doubles. their total momentum decreases
The correct option is B. If the skaters push away from each other, their momentum is equal but opposite.
Mass is a fundamental concept in physics that refers to the amount of matter in an object. It is a scalar quantity that has a magnitude but no direction. Mass is typically measured in units of kilograms (kg) in the International System of Units (SI).
Mass is a property of an object that resists any change in its motion, whether it is at rest or in motion. This is described by Newton's Second Law of Motion, which states that the force applied to an object is proportional to its mass and its acceleration. This relationship is often expressed as F=ma, where F is the force applied, m is the mass of the object, and a is its acceleration.
Mass is also related to energy through the famous equation E=mc², where E is the energy of an object, m is its mass, and c is the speed of light in a vacuum.
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Complete Question:
Two skaters stand facing each other. One skater’s mass is 60 kg, and the other’s mass is 72 kg. If the skaters push away from each other,
1. the 60 kg skater travels at a lower momentum.
2. their momentum is equal but opposite.
3. their momentum doubles.
4. their total momentum decreases
In the figure, the lines represent equipotential lines. A charged object is moved from point P to point Q. How does the amount of work done on the object compare for these three cases? a) All three cases involve the same work. b) The most work is done in case 1. c) The most work is done in case 2. d) The most work is done in case 3. e) Cases 1 and 3 involve the same amount of work, which is more than is involved in case 2.
The amount of work done on all three cases involve the same work.
What are the properties of equipotential lines?
1. Equipotential lines are always perpendicular to the electric field lines.
2. Equipotential lines have the same potential at all points on the line.
3. Equipotential lines never intersect each other.
4. The spacing between equipotential lines is equal at all points.
5. The electric field strength is zero at all points on equipotential lines.
In all the three case the change of potential or potential difference, are same.
ΔV = Vp - Vq
= 10-25
= -15 V
Work done = Vq
So, work done in all the three case are same.
Hence, option (A) all three cases involve the same work is correct.
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an experimental volume of 21.4 l is determine for 1 mole of gas at stp. what is the experimental error?
To determine the experimental error, we need to compare the experimental value with the expected or theoretical value.
At STP (Standard Temperature and Pressure), 1 mole of gas occupies a volume of 22.4 L.
Experimental error can be calculated using the following formula:
Experimental error = |(experimental value - theoretical value) / theoretical value| x 100%
Substituting the values given:
Experimental error = |(21.4 L - 22.4 L) / 22.4 L| x 100%
Experimental error = |-0.0446| x 100%
Experimental error = 4.46%
Therefore, the experimental error is 4.46%.
What is Standard Temperature and Pressure?
Standard Temperature and Pressure (STP) is a standard set of conditions for experimental measurements of gases. The standard temperature is 0°C (273.15 K or 32°F), and the standard pressure is 1 atmosphere (atm) or 101.325 kilopascals (kPa).
At STP, 1 mole of an ideal gas occupies a volume of 22.4 liters (L). This is known as the molar volume of a gas at STP and is derived from the ideal gas law, which relates the pressure (P), volume (V), number of moles (n), and temperature (T) of a gas:
PV = nRT
Where R is the gas constant. At STP, the values of P, V, and T are fixed, allowing us to calculate the number of moles of gas present (1 mole) and the volume occupied by that amount of gas (22.4 L).
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what are the two basic types of transistors
There are mainly two types of transistors. They are bipolar junction transistors and Field effect transistors.
Transistors are made with semiconductors, used for the regulation of current flow as well as voltage flow. They also acts as switches or gates.
Bipolar junction transistors are of two types. PNP transistors and NPN transistors. There are 3 layers, emitter, base and collector. There are two types of currents flows, electrons and holes. In PNP, the current flows as holes. In NPN, electrons from emitter transported through base and collected at the collector.
Field effect transistors has three terminals, source, drain, gate. Here the arrangement of n and p semiconductors is slightly different. The electrons cannot flow from the source, made up of n, to the drain, because the gate between them contains holes. By attaching a positive voltage to the gate, it allows the flow of electrons, due to the creation of electric field. So the name field effect transistors.
So the two basic type of transistors are Bipolar junction transistors and field effect transistors.
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What is online calculator of pv nrt
An online calculator of PV = nRT is a tool available on various websites that allows you to quickly solve problems related to the ideal gas law.
The ideal gas law, also known as the equation of state of an ideal gas, relates the pressure, volume, temperature, and amount (in moles) of an ideal gas.
The equation is expressed as PV = nRT, where P is the pressure in pascals, V is the volume in cubic meters, n is the amount of substance in moles, R is the ideal gas constant (8.314 J/(mol K)), and T is the temperature in Kelvin.
Online calculators of PV = nRT typically have fields for entering the values of three of the four variables, and the calculator solves for the fourth variable. For example, if you know the pressure, volume, and temperature of an ideal gas, you can use the online calculator to find the number of moles of the gas.
Some online calculators of PV = nRT may also allow you to convert the units of the variables, such as converting the pressure from atmospheres to pascals, or the temperature from Celsius to Kelvin.
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A 6 kg ball of clay traveling at 14 m/s collides with a 24 kg ball of clay traveling in the same direction at 8 m/s. What is their combined speed if the two balls stick together when they touch?
The combined speed of the two balls of clay after the collision is 7.2 m/s.
What is momentum?Momentum is a concept in physics that is used to describe an object's resistance to changes in motion. It is based on the principle of inertia, which states that an object will remain in a state of rest or constant motion unless acted upon by an outside force. Momentum is calculated by multiplying the mass of an object by its velocity. Momentum is a vector quantity, meaning that it has both magnitude and direction. Momentum is also conserved, meaning that the total momentum of any closed system remains constant.
The combined speed of the two balls of clay after the collision can be calculated using the law of conservation of momentum. According to this law, the momentum of the system before and after the collision is the same. momentum is equal to the mass multiplied by velocity (p = mv). Before the collision, the total momentum of the system is equal to the sum of the momentum of each ball. So, before the collision, the total momentum of the system is equal to 6 kg x 14 m/s + 24 kg x 8 m/s = 216 kg m/s.
After the collision, the two balls of clay stick together, so their combined mass is equal to 6 kg + 24 kg = 30 kg. Since the momentum of the system is conserved, the combined speed of the two balls of clay after the collision is equal to the total momentum (216 kg m/s) divided by the combined mass (30 kg), which is equal to 7.2 m/s. Therefore, the combined speed of the two balls of clay after the collision is 7.2 m/s.
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Sitting on a table that is 85.5 cm above the deck is a spring that has a spring constant of k = 455 N/m. The spring is compressed a distance of 11.5 cm with a 0.756 kg ball. (a) What is the kinetic energy stored in the spring? (b) When the ball is released, what is the velocity of the ball? (c) When the ball rolls off the table, how much time does it take till it hits the deck? (d) How far does the ball travel horizontally from the edge of the table before it hits the deck? (e) What is the kinetic energy of the ball just before it hits the deck?
Answer:
(a) Kinetic energy stored in the spring = 1/2 * k * x^2 = 1/2 * 455 N/m * 11.5 cm^2 = 6,362.5 J
(b) Velocity of the ball = √(2*6,362.5 J / 0.756 kg) = 22.1 m/s
(c) Time till ball hits the deck = (85.5 cm – 11.5 cm) / 22.1 m/s = 3.5 s
(d) Horizontal distance = 22.1 m/s * 3.5 s = 77.4 cm
(e) Kinetic energy of the ball just before it hits the deck = 1/2 * 0.756 kg * 22.1 m/s^2 = 79.9 J
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suppose earth’s distance from the sun were to double. what would happen to the intensity of sunlight in our new orbit? recall that intensity scales with distance squared.
If the Earth's distance from the sun were to double, the intensity of sunlight at our new orbit would decrease by a factor of four (2²).
What is orbit?
The route an object makes around another object while being pulled by gravity is known as an orbit. The planets, moons, asteroids, and other celestial bodies in our solar system revolve around the sun. Orbits are typically elliptical in shape rather than being complete circles.
The smaller object is maintained in place by the gravitational force between the two items because the object being orbited is normally far more massive than the object in orbit. The mass of the object being orbited and the separation between the two objects influence the speed of the object in orbit. Understanding and forecasting the motion of celestial objects, as well as planning the trajectories of spacecraft, depend heavily on orbits.
If the Earth's distance from the sun were to double, the intensity of sunlight at our new orbit would decrease by a factor of four (2²).
This is because the intensity of sunlight follows an inverse square law with distance, which means that if the distance between the Earth and the sun is doubled, the intensity of sunlight received by the Earth will decrease by a factor of four.
So, if the Earth were to move to an orbit twice as far away from the sun, the intensity of sunlight reaching the Earth would be only one-fourth as intense as it is now. This would have a significant impact on the temperature and climate of the Earth, as well as the availability of sunlight for photosynthesis by plants.
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A circuit consists of three unequal capacitors C1, C2, and C3 which are connected to a battery of voltage V0. The capacitance of C2 is twice that of C1. The capacitance of C3 is three times that of C1. The capacitors obtain charges Q1,Q2, and Q3.# Question: compare Q1, Q2 and Q3a) Q1 > Q3 > Q2b) Q1 > Q2 > Q3c) Q1 > Q2 = Q3d) Q1 = Q2 = Q3e) Q1 < Q2 = Q3
From the given information provided, by comparing the charges of capacitors, the correct answer is (e) Q₁ < Q₂ = Q₃.
The charges Q₁, Q₂, and Q₃ on the three capacitors can be calculated using the formula Q = CV, where Q is the charge, C is the capacitance, and V is the voltage across the capacitor.
Given that the capacitors are connected to a battery of voltage V₀ and the capacitance of C₂ is twice that of C₁, and the capacitance of C₃ is three times that of C₁, we can write:
C₂ = 2C₁
C₃ = 3C₁
a) To compare Q₁, Q₂, and Q₃, we need to express them in terms of C₁. From the above equations, we can write:
C₁ = C₁
C₁ = 2C₁
C₃ = 3C₁
Using the formula Q = CV, we can calculate the charges as:
Q₁ = C₁ V₀
Q₂ = C₂ V₀ = 2C₁ V₀
Q₃ = C₃ V₀ = 3C₁ V₀
Since V₀ is the same for all capacitors, we can compare the charges by comparing the values of C₁, 2C₁, and 3C₁:
Q₁ = C₁ V₀
Q₂ = 2C₁ V₀
Q₃ = 3C₁ V₀
Since C₁ < 2C₁ < 3C₁, we can conclude that:
Q₁ < Q₂ < Q₃
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what is the difference between diamagnetic vs paramagnetic
Diamagnetic means substances that are repelled by a magnetic field and paramagnetic means the substances that are attracted by a magnetic field.
The main differences between the paramagnetic and diamagnetic substances is the attraction and repulsion in presence of a magnetic field.
Paramagnetic materials have at least one unpaired electron in their shells. When it is kept in a magnetic field, the field lines pass through the substance. Relative permeability will be more than 1.
Diamagnetic substances have all the electrons paired. It also tend to repel the magnetic field lines. Relative permeability will be more than 1.
So the main difference is paramagnetic material is attracted by the magnetic field while diamagnetic substance is repelled.
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A shopper in Whole Foods pushes their cart with a force of 40 N directed at an angle of
30 degrees downward form the horizontal. Find the work done by the shopper on the
cart as he moves down a 15 m aisle to the tofu section.
If the mass of the cart (24kg), from problem 1, and we neglect friction, how fast will the cart
be moving when it reaches the tofu section if it started from rest?
The shopper brings the cart to rest is 2.7 s when he reaches the tofu. What powerdoes he exert in stopping the cart?
1. The force acting on 15m is 40 N. Then the work done by the shopper is 300 J.2. The kinetic energy change is equal to the work done here. Hence, the velocity of the cart is 5 m/s. 3. The power of the cart in 2.7 s is 111 W.
What is work done?Work done is the product of force and displacement of an object . Like force, work done is a vector quantity characterized by a magnitude and direction.
1. The force here = 40 N
displacement = 15 m
angle of horizontal inclination = 30°
then W = F.d sin θ
W = 40 N × 15 sin 30 = 300 J
2. The change in kinetic energy ΔKE = work done.
here initial kinetic energy zero since, the cart was at rest.
then ΔKE = 1/2 mv² = 300 J
m = 24 kg
then v = 5 m/s.
3. Power exerted to stop - work done/time
P = 300 J/2.7 s = 111 W.
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which process is an example of the first law of thermodynamics in action?
An example of the first law of thermodynamics in action is a car engine, that converts chemical energy to mechanical energy to power its motion.
The first law of thermodynamics, also known as the law of conservation of energy, states that the total energy of a closed system remains constant, which means energy can only be converted and not made or destroyed.
In this process, the fuel is burned in the engine, releasing heat energy that is used to increase the temperature and pressure of the gases in the engine cylinder. The expanding gases then push a piston, converting the heat energy into mechanical work to turn the car's wheels.
Although some of the energy is lost to the environment as waste heat, the total energy of the system remains constant, demonstrating the first law of thermodynamics in action. This law is fundamental to understanding and predicting the behavior of energy in all physical and chemical systems, from power plants and engines to everyday processes such as cooking and exercising.
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why might physicians and lawyers find limited liability partnerships attractive
Limited liability partnerships are attractive to professions like medicine or law because they limit the amount of personal risk that one person takes.
Your choices and investments in a Limited Liability Partnership are entirely your responsibility. A third kind of corporate business form called an LLP combines the adaptability of a partnership with the limited liability of a corporation. Changes in partners won't put an end to the LLP's existence. It has the authority to enter into contracts and own property in its own right. In a general partnership, the partners are individually responsible for all debts incurred by the business, including but not limited to employee behaviour. Moreover, each owner bears unlimited personal responsibility for their deeds.
A limited liability partnership (LLPprincipal )'s advantage is that it lowers the participants' personal liability while yet allowing the partnership to continue functioning as a pass-through entity for tax purposes.
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a force of 1.21 x 103 n is needed to bring a car moving at 22.0 m/s to a halt in 20.0 s. what is the mass of the car?
According to the statement, If a force 1.21 x 103 N is needed to bring a car moving at 22.0 m/s to a halt in 20.0 s then the mass of the car is 1.10 x 10³ kg.
What is force?The push or draw motion is the simplest definition of force. Contact forces and non-energies are two different kinds of forces. Nuclear force, gravitational force, mechanical force, electrostatic force, electrical force, spring force, and others are a few instances of forces.
According to formula
force = mass x acceleration
When the car is brought to a halt, its final velocity is 0 m/s.
[(Final velocity) – (Initial velocity)] / Time = acceleration
acceleration = (0 - 22.0 m/s) / 20.0 s
acceleration = -1.10 m/s²
Note that we have used a negative sign because the acceleration is opposite to the direction of the initial velocity.
1.21 x 10³ N = mass x (-1.10 m/s²)
mass = 1.21 x 10³ N / (-1.10 m/s²)
mass = -1.10 x 10³ kg
The negative mass value doesn't make sense physically, so we need to use the absolute value:
mass = 1.10 x 10³ kg
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100 g of water at 25 °C is poured into an insulating cup. 50 g of ice at 0 °C is added to the
water. The water is stirred until the temperature of the water has fallen to 0°С. 18 g of ice
remains un melted. The specific heat capacity of water is 4. 2 J/g °C.
Which value does this experiment give for the specific latent heat of fusion of ice? *
(1 Point)
210 J/g
330 J/g
583 J/g
770 J/g
33600 J/K is the latent heat of fusion of ice. The amount of heat needed to transform a unit mass of ice from a solid state into a liquid state is known as the latent heat of fusion of ice.
We have some data:
Into an insulated cup is added 100g of water at 25°C.
The water is added to 50g of ice that is at 0°C.
Until the water reaches a temperature of 0°C, it is swirled.
18g of ice have not yet melted.
Water has a specific heat capacity of 4.2J/g'C.
Mass of water mg = 100 g
Water's initial temperature T1w = 25 degree C
Water's final temperature T2w = 0 degree C
Initial mass of ice m1 = 50 g
Final mass of ice m2 = 18 g
Ice that melted = Change in mass = 50 - 18 = 32 g
L is ice's latent heat of fusion
Heat lost by water = water ice received to melt 32 g
mw * C * change in T = change in mL
L = (100 * 4.2 * 25)/32
L = 328 J/g = 330 J/g
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Two point charges, A and B,lie along a line separated by a distance L. The point x is the midpoint of their separation. Which combination of charges would yield the greatest repulsive force between the charges
Two point charges, A and B, lie along a line separated by a distance L.
[tex]A[/tex][tex]---------x---------[/tex][tex]B[/tex]
The point x is the midpoint of their separation. The combination of charges would yield the greatest repulsive force between the charges are [tex]-4q ,+4q[/tex].
As the electric field is defined as the force per unit charge, it is also a vector, which acts along the straight line joining the point with the charge that produces the field, same as if there were a charge in this point.
By definition, the direction of the electric field, would be the one that would take a positive test charge (small enough not to change the charge distribution that produces the field), placed in the point where we can find the field value, so it will be away of the charge if the charge creating the field is positive and vice versa if the charge is negative.
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What is the average force of gravitation between Mars and the Sun?
[tex]1.65 * 10^2^1 N[/tex] is the average force of gravitation between Mars and the Sun. So, the correct option is C.
What is the Gravitational force?Gravitational force is defined as the fundamental interaction which causes mutual attraction between all things that have mass or energy.
The magnitude of the gravitational force between two objects is given by the equation:
[tex]F=G\frac{m_1m_2}{r^2}[/tex]
where,
[tex]G= 6.67* 10^-^1^1 m^3 kg^-^1 s^-^2[/tex] is the gravitational constant
[tex]m_1, m_2[/tex] are the masses of the two objects
r is the separation between them
For the above given information,
[tex]m_1= 1.99* 10^3^0 kg[/tex] is the mass of the Sun
[tex]m_2= 6.39* 10^2^3 kg[/tex] is the mass of Mars
[tex]r= 229* 10^6 km = 229* 10^9 m[/tex] is the average distance between the Mars-Sun
By putting the value we can find the gravitational force:
[tex]F= (6.67 * 10^-^1^1)\frac{(1.99* 10^3^0) (6.39* 10^2^3)}{(2.29*10^9)^2}[/tex]
[tex]F= 1.62* 10^2^1 N[/tex]
Thus, [tex]1.65 * 10^2^1 N[/tex] is the average force of gravitation between Mars and the Sun. So, the correct option is C.
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Your question is incomplete, most probably the complete question is:
What is the gravitational force between Mars and the sun?
[tex]7.43 * 10^3^0 N[/tex][tex]1.79 * 10^2^6 N[/tex][tex]1.65 * 10^2^1 N[/tex][tex]3.76 * 10^3^2 N[/tex]What is onlie calculator of simpson's rule
An online calculator of Simpson's rule is a tool available on various websites that allows you to approximate the definite integral of a function using Simpson's rule.
Simpson's rule is a numerical integration technique that approximates the area under a curve by fitting a second-degree polynomial (i.e., a parabola) to three consecutive points on the curve, and then integrating the polynomial over the interval of interest.
The formula for Simpson's rule can be expressed as follows:
∫_a^b f(x) dx ≈ (b-a)/6 [f(a) + 4f((a+b)/2) + f(b)]
where f(x) is the function to be integrated, a and b are the limits of integration, and the approximation sign indicates that the formula is an approximation of the exact value of the integral.
Online calculators of Simpson's rule typically have fields for entering the function to be integrated, the limits of integration, and the number of subintervals (i.e., the number of parabolas to be used in the approximation). The calculator then applies Simpson's rule to the function over the specified interval, and returns an approximate value of the definite integral.
Some online calculators of Simpson's rule may also provide additional features, such as graphing the function and the approximation, or comparing the results of Simpson's rule to other numerical integration techniques.
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For a fish to see a bug just above the surface of the water, light travels from
the insect through the air and crosses into the water until it reaches the fishes'
eye. Which statement is true regarding the light wave as it travels through the
different media?
A. The light wave will split into different colors as it moves from the air to the
water because it gets refracted.
B. The light wave will bounce back into the air when it moves into the water
because it gets refracted from the bug to the fish’s eye.
C. The light wave will bend as it moves from the air to the water because it
changes speed and gets refracted.
D. The light wave will stop as it moves from the air to the water because it is
blocked and gets reflected
Answer:
C. The light waves will bend as they hit the water and slow down because water is a denser medium than air.
Explanation:
Refraction, or the bending of light, is caused by a change in the medium through which it passes. Air and water have different optical densities. As a result, light that enters the water is refracted more normally.
Why can light be used to measure distance accurately?
Light can be used to measure distance accurately because it travels at a constant speed, which is approximately 300,000 kilometers per second.
This means that if you know the amount of time it takes for light to travel from one point to another, you can accurately calculate the distance between those two points.
For example, if it takes light one second to travel from point A to point B, you know that the distance between those two points is 300,000 kilometers. This is why light is often used in astronomy to measure the distance between celestial objects, as it provides an accurate and reliable method of measurement.
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in the absence of an external force, a moving object will
In the absence of an external force, a moving object will continue to move in a straight line with a constant speed, according to Newton's first law of motion.
What is force?In physics, force is defined as an influence that causes an object to undergo a change in motion, either by accelerating, decelerating, or changing direction. Force can be described as a push or a pull on an object, and it is typically measured in units of newtons (N) in the International System of Units (SI). Some common examples of forces include gravity, friction, electromagnetic force, and the force applied by a person or machine. The laws of motion developed by Isaac Newton provide a mathematical framework for understanding how forces affect the motion of objects.
Here,
This means that an object in motion will maintain its state of motion unless acted upon by an unbalanced force. Therefore, in the absence of an external force, the object will not change its velocity, which includes both speed and direction. This principle is applicable to both stationary and moving objects, and is a fundamental concept in classical mechanics.
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According to Boyle's Law, the volume of a gas varies directly with its pressure when the temperature is held constant. (true or false)
It is false that, while the temperature is held constant, Boyle's Law states that a gas's volume varies directly with its pressure.
Boyle's Law is a fundamental principle in chemistry that describes the behavior of gases at constant temperature. According to the law, the volume of a gas at a given temperature is inversely proportional to the pressure it exerts (this rule was established by Robert A. Boyle in 1662).
However, the above statement contains the false assertion that the volume of a gas is directly related to its pressure as long as the temperature remains constant.
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