The time of flight is approximately 101.04 seconds, or just over 1 minute and 41 seconds.
What is displacement and distance?Displacement and distance are both concepts used to describe the motion of an object, but they have different meanings.
Distance refers to the total length of the path traveled by an object from its starting point to its ending point. It is a scalar quantity, which signifies it only has magnitude and no direction. For example, if a person walks 2 km east and then 3 km north, the total distance traveled is 5 km.
Displacement, on the other hand, refers to the straight-line distance between an object's starting point and its ending point, measured in a specific direction. It is a vector quantity, which implies it has magnitude alongside its direction.
We may utilize the kinematic equations of motion to solve this problem. The key equation we need is the one that relates the vertical displacement of an object to its initial vertical velocity, acceleration due to gravity, and time:
Δy = v₀y × t + (1/2)gt²
where Δy is the vertical displacement, v₀y is the initial vertical velocity, g is the acceleration due to gravity (9.8 m/s²), and t is the time of flight.
In this case, we know that the vertical displacement is 5.00 km (5000 m), the initial vertical velocity is 0 m/s (since the person is running horizontally off the cliff), and the acceleration due to gravity is -9.8 m/s² (negative because it acts in the opposite direction to the person's motion). We can quantify t as follows:
5000 = 0t + (1/2) × (-9.8) × t²
t² = (2 × 5000)/9.8
t = √((2 × 5000)/9.8) ≈ 101.04 seconds
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How to convert 96 kg to lbs
96 kg is equal to 211.6 lbs.
The fundamental mass unit in the metric system is the kilogramme (kg). A kilogramme and 1,000 cubic centimetres of water have fairly similar masses.
One pound is approximately equal to 454 grams. One kilogram is the same as 2.20462 lbs.
1 pound is equal to 0.45359237 kilograms.
To convert kilograms (kg) to pounds (lbs), you can use the following formula:
To convert kilograms to pounds, multiply your figure by 2.20462
To convert 96 kg to lbs, you can multiply 96 by 2.20462:
96 kg X 2.20462 lbs/kg
= 211.64472 lbs
Therefore, 96 kg is approximately equal to 211.6 lbs.
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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 skaters' momentum is equal but in the opposite direction if they push apart from one another. From the given option, option B is correct.
The momentum is given by the expression p = m×v. Here, the mass is denoted by m and velocity by v. By Newton's third law of motion, when there is a collision between two objects, they both experience force. And this force is equal in terms of magnitude. But opposite in terms of direction.
So one object will gain momentum while the other object loses momentum. In the given situation, the third law of motion comes into action. Therefore, the momentum between the two skaters will be equal but they are in opposite directions. The correct statement is option B.
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The complete question is -
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 without spinning,
A. the 60kg skater travels at a lower momentum.
B. their momentum is equal but opposite.
C. their total momentum doubles
D. their total momentum decreases.
A transverse wave is found to have a vertical distance of .9m from a trough to a crest, a horizontal distance of 4.13 m from the center of a crest to the nearest trought, and 1 of these waves passes a point of reference every 1.37 seconds. Determine the amplitude, period, wavelength, and speed of these waves.
The amplitude is 0.45 m,
The period is 1.37 s,
The wavelength is 4.13 m, and
The speed is 3 m/s.
What is a wave?A wave is a disturbance that travels through a medium, transferring energy without transferring matter. Waves can be characterized by their amplitude, frequency, wavelength, and speed.
There are many types of waves, including mechanical waves (such as sound waves and water waves) and electromagnetic waves (such as light and radio waves). Waves are important in many areas of science and technology, from communication to medicine to engineering.
To solve this problem, we can use the following formulas:
Amplitude (A) = distance from the trough to the crest / 2 = 0.9 / 2 = 0.45 m
Period (T) = time for one wave to pass = 1.37 s
Wavelength (λ) = distance from crest to crest (or trough to trough) = 4.13 m
Speed (v) = λ / T = 4.13 / 1.37 = 3 m/s
Therefore, the amplitude is 0.45 m, the period is 1.37 s, the wavelength is 4.13 m, and the speed is 3 m/s.
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how to convert 600 kg to lbs?
600 kilograms is equal to 1322.4 pounds.
While measuring weight, various units like kilograms (kg) and pounds (lbs) are some commonly used units of measurement of weights. In order to understand and do all the conversion of kilograms to pounds, it is very important to know that there are 2.20462 pounds which makes up one kilogram.
Formula used:
lbs = Kg x 2.204
lbs= 600 x 2.204
So, to convert 600 kilograms to pounds, there is a requirement of multiplying 600 to 2.20462. When this calculation is done, we obtain 1322.4 pounds.
In summary, to need to convert kilograms to pounds and thereafter, we simply need to multiply the number of kilograms by numerical value of 2.20462. 600 kg is equal to 881.848 pounds. 200 kg is equal to 440.924 pounds and consequently 300 kg is equal to 661.386 pounds.
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why is fluted filter paper used in gravity filtration?
Fluted filter paper is often used in gravity filtration because it allows for faster filtration rates and greater particle retention than regular flat filter paper.
How does fluted filter paper help in filteration?The fluted shape of the paper creates channels or grooves that increase the surface area and provide more space for the filtered material to flow through. This design also prevents the filter paper from clogging, allowing air to escape and helps to maintain a steady flow of liquid through the filter.
What is gravity filteration?Gravity filtration is a common laboratory technique used to separate a solid from a liquid mixture by allowing the mixture to pass through a filter under the influence of gravity. The process relies on gravity to pull the liquid through the filter paper while leaving behind the solid particles.
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• if one gear has an input torque of 1000 lb-ft, what is the torque of the other gear
The output torque of the second gear will be 3000 lb-ft.
Gear is a toothed wheel or cylinder that is used to transmit rotational force or motion from one component to another. Gears are commonly used to change the speed or direction of a rotating force, increase or decrease torque, and to alter the amount of force between two components. Gears are found in many everyday machines, including cars, bicycles, clocks, and other machines.
The torque of the other gear is determined by the gear ratio. If the gear ratio is 3:1, then the output torque of the second gear will be [tex]\frac{ 1000 lb-ft}{3} = 333.3 lb-ft.[/tex]
If the gear ratio is 1:3, then the output torque of the second gear will be[tex]1000 lb-ft*3 = 3000 lb-ft[/tex]
Therefore,then the output torque of the second gear will be 3000 lb-ft.
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After the Sun exhausts its nuclear fuel, its ultimate fate will be collapse to a white dwarf state. In this state, it would have approximately the same mass as it has now, bit its radius would be equal to the radius of the earth calculate the average density of the white dwarf
The average density of white dwarf after sun exhausts its nuclear fuel is [tex]1.84 * 10^9 kg/m^3[/tex]
After sun exhausts its nuclear fuel, it will become a white dwarf and will have same mass and radius as Earth. White dwarf contains matter that is based on degenerated electrons, with high density, mass as much as sun, but volume like that of the sun. They have utilized entire Hydrogen reserves to convert into Nuclear fuel.
The average density of white dwarf = Vw = [tex]4/3 * \pi * w^3[/tex]
Let radius of white dwarf be Rw and radius of Earth be Re.
Density = Mass/Volume
Pw = MR/ ([tex]4/3 * \pi * Re^3[/tex])
Pw = [tex]1.99 * 10^(30)[/tex]/ ([tex]4/3 * \pi * (6.37 * 10^6)^3[/tex])
Pw = [tex]1.84 * 10^9 kg/m^3[/tex]
Therefore, density of White Dwarf equals to [tex]1.84 * 10^9 kg/m^3[/tex] as per scenario presented in question.
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Circular turns of radius r in a race track are often banked at an angle θ to allow the cars to achieve higher speeds around the turns. Assume friction is not present, and use the coordinate system specified. a.Find the y component of the normal force FN on a car going around the turn in terms of the angle θ and the magnitude of the normal vector FN.b. Find the x component of the normal force FN on a car going around the turn in terms of the angle θ and the magnitude of the normal vector FN.c. Now write the magnitude of the normal force in terms of the force of gravity Fg and the angle θ.d. Now write the magnitude of the normal force again, this time in terms of the gravitational force Fg, g, θ, the radius of the track r, and the velocity that the car is traveling v.e.Now assume that the car is moving at 15 m/s and the radius of the track is 130 m. What is the angle θ in degrees?
a. The y component of the normal force is [tex]F_N(y) = F_N \times sin(\theta)[/tex]
b. The x component of the normal force is [tex]F_N(x) = F_N \times cos(\theta)[/tex]
c. The magnitude of the normal force written in terms of the force of gravity, Fg, and the angle θ is FN = Fg / cos(θ)
d. The magnitude of the normal force written in terms of the gravitational force, Fg, acceleration due to gravity, g, the radius of the track, r, and the velocity that the car is traveling, v is FN = (Fg / g) × √((v^2)/(r^2) + 1)
e. The angle θ is approximately 30 degrees
Determining the x and y components of the normal forceFrom the question, we are to determine y component and the x component of the normal force
a) The y component of the normal force, FN, is given by:
[tex]F_N(y) = F_N \times sin(\theta)[/tex]
where θ is the angle at which the track is banked.
b) The x component of the normal force, FN, is given by:
[tex]F_N(x) = F_N \times cos(\theta)[/tex]
where θ is the angle at which the track is banked.
c) The magnitude of the normal force, FN, can be written in terms of the force of gravity, Fg, and the angle θ as:
FN = Fg / cos(θ)
d) The magnitude of the normal force, FN, can also be written in terms of the gravitational force, Fg, acceleration due to gravity, g, the radius of the track, r, and the velocity that the car is traveling, v, as:
FN = (Fg / g) × √((v^2)/(r^2) + 1)
e) Given that the car is moving at 15 m/s and the radius of the track is 130 m, we can use the equation from part (d) to solve for the angle θ:
FN = (Fg / g) × √((v^2)/(r^2) + 1)
FN = (mg / g) × √((v^2)/(r^2) + 1)
FN = mg × √((v^2)/(r^2) + 1)
FN = (m × g) × √((15^2)/(130^2) + 1)
Where m is the mass of the car, and g is the acceleration due to gravity.
Assuming a typical mass for a race car of 1000 kg, we can calculate the angle θ as follows:
FN = (1000 kg * 9.81 m/s^2) * sqrt((15^2)/(130^2) + 1)
FN = 9644.4 N
Using the equation from part (c), we can solve for the angle θ:
FN = Fg / cos(θ)
cos(θ) = Fg / FN
cos(θ) = mg / FN
θ = cos⁻¹(mg / FN)
Plugging in the values, we get:
θ = cos⁻¹((1000 kg * 9.81 m/s^2) / 9644.4 N)
θ = 30.0 degrees
Therefore, the angle θ is approximately 30 degrees
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is mass an intensive or extensive physical property?
Mass is an extensive physical property because it is dependent on the amount or quantity of matter present in a system.
Mass is a measure of the total amount of matter that is present in an object or substance, and it is directly proportional to the number of atoms or molecules that make up that object or substance.
Intensive properties, on the other hand, do not depend on the amount of matter present in a system. Examples of intensive properties include temperature, density, and specific heat. These properties remain constant regardless of the size or quantity of the sample.
In contrast, if you combine two objects, the total mass will be equal to the sum of the individual masses of the objects. This is what makes mass an extensive property. The more mass there is in a system, the more extensive the property becomes.
Therefore, mass is an essential parameter for describing many physical phenomena, such as momentum, energy, and force. It is an essential factor in the laws of physics, and it plays a crucial role in determining the behavior of objects in motion.
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when a wire with a current is placed in a magnetic field?
Answer:
Results: The wire will bend away from the poles of the magnet.
A student wants to design an experiment to study the transformation of mechanical energy. which object can be used to investigate how gravitational potential energy transforms into kinetic energy
a slide
a spring
a rug
a flat race car track
A slide would be the best object to investigate how gravitational potential energy transforms into kinetic energy.
option A.
How does gravitational potential energy transforms into kinetic energy?When a person slides down a slide, they start at the top of the slide with potential energy due to their position relative to the ground. As they slide down, this potential energy is converted into kinetic energy, which is energy due to motion. At the bottom of the slide, the person has reached their maximum speed and all their potential energy has been converted into kinetic energy.
By measuring the height of the slide and the speed of the person at the bottom of the slide, the student can investigate how gravitational potential energy is transformed into kinetic energy. This can be done by calculating the amount of potential energy at the top of the slide and comparing it to the kinetic energy at the bottom of the slide.
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is impulse change in momentum
Yes, an impulse is defined as the change in momentum of an object. When an external force is applied to an object for a period of time, the object's momentum changes.
The impulse is equal to the change in momentum, and it is equal to the force multiplied by the time over which the force was applied. Mathematically, the impulse is given by the formula:
Impulse = Force x Time
And the momentum of an object is given by the formula:
Momentum = Mass x Velocity
So, if a force is applied to an object for a time period and the object's velocity changes as a result, then the impulse experienced by the object is equal to the change in momentum. This can be expressed as:
Impulse = Final Momentum - Initial Momentum
where the final momentum is the momentum of the object after the force is applied, and the initial momentum is the momentum of the object before the force is applied.
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an object 2 cm high is positioned 5 cm to the right of a positive thin lens with a focal length of 10 cm. describe the resulting image completely. (where is the imaging position? how tall is the image? erect or inverted? magnified or minified? real or virtual?)
The image will be located 5 cm to the right of the lens, 5 cm to the left of the object. The image will be inverted, magnified, and real, and it will be 10 cm tall.
What is Image?Image is a visual representation of a physical object, person, scene, or text. It can be a two-dimensional picture such as a photograph or a drawing, or a three-dimensional picture such as a sculpture or a hologram. Images can also be digital, such as a JPEG file or a GIF file. Images can be used to express emotions, convey information, or capture a moment in time. They can be used for entertainment, education, or advertisement. Images can be found in all forms of media, including newspapers, magazines, books, television, movies, and the internet. Images can also be used to create a mood or atmosphere, or to tell a story.
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what is the amount of strength that is applied to the rope in a pulley to raise the object called?
The amount of strength that is applied to the rope in a pulley to raise the object is called tension.
Basically use a rope to pull an object by the means of pulley system.
When we raise an object to a certain height a strength forces developed in the rope that is called tension in the rope.
We use the pulley and rope system in order to distribute the weight of an object evenly on all the pulleys in the system.
When lifted directly vertically the tension in the string is equal to the weight of the object that it is lifting.
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galileo became friends with another important scientist of this time, johannes kepler. with these two mean working together and feeding off each other's creativity, what did they help to spur on?
Both Galileo and Johannes Kepler contributed to find the features of solar systems. It was Kepler who first discovered the solar centric system and revolution of planets around.
What was Galileo's observations ?Galileo used logical reasoning to confront the issues with the Earth's rotation and revolution. Despite their great speed, bodies do not fly off the Earth since the planet is not actually rotating quickly.
Any object on Earth is moving very slowly in terms of rotations per minute and has little tendency to take off into space. Galileo came to the conclusion that once the planets are in motion in circles, they stay in motion forever.
Copernican orbits are thus real. Galileo never acknowledged Kepler's ellipses since doing so would have required him to give up on his Copernican issue solution.
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the amount of energy used to heat a home can be measured using?a. Wattb. Kilowatt hoursc. Joule
Kilowatt hours are a unit of measurement for the energy required to heat a house. It is the amount of energy used every hour. Hence option B.
Power is a tangible measure of how much work or energy is expended in a certain amount of time. Therefore, power is the rate at which an object expends energy or performs work. Watt is the definition of power. The joule is a unit of both work and energy.
Kilowatts are the unit of measurement for power for higher energy usage. Power input and time are the components of work or energy.
W in J hence equals power in Watt/time in hours.
Kilowatts hours are the unit used to measure domestic energy use. Hence, option B is our answer.
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Are electron transport chain and oxidative phosphorylation the same process?
The electron transport chain and oxidative phosphorylation are closely related but are not the same process.
The electron transport chain and oxidative phosphorylation are two separate processes that occur during cellular respiration. The electron transport chain involves a series of electron carriers that transfer electrons from NADH and FADH2 to oxygen, creating a proton gradient across the mitochondrial inner membrane.
Oxidative phosphorylation, on the other hand, is the process by which ATP is synthesized using the energy from the proton gradient created by the electron transport chain.
While the electron transport chain and oxidative phosphorylation are closely related and dependent on each other, they are distinct processes that occur in different locations within the mitochondria. The electron transport chain occurs in the inner mitochondrial membrane, while oxidative phosphorylation occurs in the mitochondrial matrix.
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How much of 11.2 g of iodine-135 (half-life: 6.6 h) would remain after 19.8 hours?
Approximately 2.2 g of iodine-135 would remain after 19.8 hours at the given half life.
How much of 11.2 g of iodine-135 would remain after 19.8 hours?
To solve this problem, we can use the formula for radioactive decay:
N = N0 * (1/2)^(t/T)
Where;
N is the amount of radioactive material at time t, N0 is the initial amount of radioactive material, T is the half-life, and t is the elapsed time.We are given that the initial amount of iodine-135 is 11.2 g, the half-life is 6.6 hours, and the elapsed time is 19.8 hours.
Using the formula, we can find the amount of iodine-135 remaining after 19.8 hours:
N = 11.2 * (1/2)^(19.8/6.6)
N ≈ 2.2 g
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based on what you learned about light production in stars, select all of the correct statements from the following list. a) Heat flows from hot to cool regions. b) Hotter stars radiate more energy at higher frequencies. c) The temperature of a star can be roughly estimated from its color. d) Stars emit light mostly from their surfaces.
All of the statements listed are correct based on what we have learned about light production in stars.
a) Heat flows from hot to cool regions. This is a fundamental law of thermodynamics that governs heat transfer and is applicable to all objects, including stars.
b) Hotter stars radiate more energy at higher frequencies. This is known as Wien's law, which states that the wavelength of maximum radiation emitted by a blackbody is inversely proportional to its temperature.
c) The temperature of a star can be roughly estimated from its color. This is based on the fact that the peak wavelength of light emitted by a blackbody is related to its temperature, and the color of a star is a reflection of the wavelengths of light it emits.
d) Stars emit light mostly from their surfaces. This is due to the fact that the outer layers of a star are less dense and cooler than the core, which allows light to escape more easily from the surface.
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how to convert kn to n
To convert from kilonewtons (kN) to newtons (N), you need to multiply the value in kilonewtons by 1000.
This is be Newtons (N) is a unit of measurement for force in the International System of Units (SI). It is named after Sir Isaac Newton, the English physicist and mathematician who made significant contributions to our understanding of physics and mechanics.
One newton is defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared. In other words, it is the amount of force needed to cause a mass of one kilogram to accelerate at a rate of one meter per second squared.cause "kilo" means thousand, so 1 kilonewton is equal to 1000 newtons. Therefore, to convert kN to N, you can use the following formula:
1 kN = 1000 N
To convert a specific value, simply multiply the value in kN by 1000. For example, if you have a force of 5 kN, you can convert it to newtons by multiplying 5 by 1000, which gives you 5000 N.
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what is linear momentum conserved?
Linear momentum is conserved in a closed system when the net external force acting on the system is zero.
When two or more objects interact with each other, they exert equal and opposite forces on each other, known as Newton's Third Law of Motion. These forces cause changes in the motion of the objects, and the total amount of linear momentum in the system is conserved, provided there are no external forces acting on the system.
This means that the total momentum of the objects before the interaction is equal to the total momentum of the objects after the interaction. The conservation of linear momentum is a fundamental principle of physics and has numerous applications in mechanics, including collisions, explosions, and rocket propulsion.
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--The complete question is, What is meant by conservation of linear momentum?--
how much benzoic acid weight
a physical property that describes the ability of a substance to be rolled or pounded into thin sheets is?
The physical property that describes the ability of a substance to be rolled or pounded into thin sheets is called Ductility.
Ductility is the ability of a material to deform under tensile stress, such that it can be drawn out into a thin wire or flattened into a thin sheet without breaking. This property is particularly important for metals, as it allows them to be easily shaped into useful forms like wires or foils, and also contributes to their overall strength and toughness. Materials with high ductility can withstand significant strain without fracturing, making them useful in many engineering applications. Conversely, materials with low ductility are more brittle and prone to fracture, which can limit their usefulness in certain applications.
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a student moves a distance of 4.0 m for 2.0 seconds. she then moves a distance of 1.0 m. i fthe total time she moved was 4.0 seconds, what was her velocity during the second time interval?
Answer:
Explanation:
We can use the formula for average velocity to calculate the student's velocity during the second time interval:
Average velocity = (final position - initial position) / time
During the first time interval, the student moved a distance of 4.0 m in 2.0 seconds, so her average velocity during that time was:
Velocity = 4.0 m / 2.0 s = 2.0 m/s
During the second time interval, the student moved a distance of 1.0 m, and the total time she moved was 4.0 seconds. Therefore, the time for the second interval was:
Time = Total time - First time interval = 4.0 s - 2.0 s = 2.0 s
We can now use the formula for average velocity again to calculate the student's velocity during the second time interval:
Average velocity = (final position - initial position) / time
Velocity = 1.0 m / 2.0 s = 0.5 m/s
Therefore, the student's velocity during the second time interval was 0.5 m/s.
A car is skidding to a stop on a level stretch of road. Part A Identify the number of the action/reaction pairs of forces between the car and the road surface. Identify the number of the action/reaction pairs of forces between the car and the road surface. a) 1 pair. b) 2 pairs. c) 3 pairs. d) No acting pairs of forces.
There are a total of 2 action/reaction pairs of forces between the car and the road surface. Hence, option b is correct.
The weight of the car exerts a downward force, and the normal force pressing on the car exerts an upward force, according to the question. When the car starts skidding on the road, the friction forces applied by the road to the car and the friction forces applied by the car to the road are equal.
So, The action/reaction pairs are :
1) the weight of the automobile on the road and the force coming from the road to the car are the forces acting on the car and the road.
2) Friction between the car's tyres and the road surface, as well as friction between the car's tyres and the road surface.
Hence, since there are two pairs of forces, option B is accurate.
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A mug slides across a horizontal counter with initial speed v.It slides off the 0.86m high counter and lands 1.4m from the base.What was its initial speed?A)0.18 m/sB)0.43 m/sC)0.58 m/sD)2.39 m/sE)3.34 m/s
Initial speed of the mug was approximately 3.34 m/s, which is option E. We use conservation of energy.
To solve this problem, we can use the conservation of energy principle to relate the initial speed of the mug to its final position after sliding off the counter.
When the mug slides off the counter, it has some potential energy due to its height above the base of the counter, and some kinetic energy due to its motion. When it lands on the floor, it has lost all of its potential energy but gained some additional kinetic energy due to the work done by gravity.
Let's assume that there is negligible air resistance during the motion of the mug. Then we can use the conservation of energy principle to write:
[tex]mgh + (1/2)mv^2 = (1/2)mv_f^2[/tex]
where m : mass of the mug, g : acceleration due to gravity, h : height of counter, v : initial speed of mug, and v_f : final speed of mug before landing on floor
Since the mug slides off the counter horizontally, it has constant horizontal velocity throughout motion. We use the horizontal distance traveled by the mug to find time of flight:
d = v_f t
d : horizontal distance traveled, and t: time of flight.
Utilize time of flight to calculate final speed of mug before landing:
[tex]h = (1/2) g t^2 = > t = sqrt((2h)/g)v_f = d / t = (d / sqrt((2h)/g))[/tex]
Substitute v_f into conservation of energy eqn and find v:
[tex]mgh + (1/2)mv^2 = (1/2)mv_f^2mgh + (1/2)mv^2 = (1/2)md^2 / t^2[/tex]
Substituting values:
[tex]mgh + (1/2)mv^2 = (1/2)md^2 g / (2h)[/tex]
Simplifying and solving for v, we get:
[tex]v = sqrt((2gh)/3) * sqrt(1 + 2d^2/(3h^2))[/tex]
Put values:
v = [tex]\sqrt{ ((2 * 9.81 m/s^2 * 0.86 m)/3)} * \sqrt{(1 + 2 * (1.4 m)^2 / (3 * (0.86 m)^2))}[/tex]
v ≈ 3.34 m/s
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Alice is running due West at 6m/s. Later she is running due East at 4m/s. How could we write a velocities to show that they are in opposite directions
Velocity is a vector quantity that has both magnitude and direction. When Alice is running due West at 6m/s, her velocity can be represented as a vector of magnitude 6m/s in the direction of the West. Similarly, when she is running due East at 4m/s, her velocity can be represented as a vector of magnitude 4m/s in the direction of the East.
Since the directions are opposite, we can show the velocities as vectors in opposite directions by assigning negative signs to one of the velocities. For example, we can write:
Velocity of Alice = 6 m/s West - 4 m/s EastHere, the negative sign indicates that the velocity of 4 m/s is in the opposite direction to the velocity of 6 m/s. The resulting velocity of Alice is the difference between the two velocities, which is:
Velocity of Alice = 6 m/s - 4 m/sVelocity of Alice = 2 m/s WestTherefore, the velocity of Alice in opposite directions can be represented as a vector of magnitude 2 m/s in the direction of the West.
~ Zeph
which construction classification require that all structural members are composed of non combustible or limited combustible materials with high fire-resistive rating
A) Type 1
B) Type 2
C) Type 3
D) Type 4
E) Type 5
Type 1 construction is defined as demanding that all structural members be made of noncombustible or minimally combustible materials with high fire-resistance ratings.
Construction of type 1 is also referred to as fire-resistant construction and is built to endure intense fire exposure. It primarily consists of noncombustible structural components consisting of concrete, steel, or masonry, which are commonly covered in fire-resistant materials like gypsum board, spray-on protective coatings, or fire-resistant insulation. The term combustible refers to any material that has the ability to burn or ignite when exposed to heat, flame, or other sources of ignition. Combustible materials include a wide range of substances, including wood, paper, plastics, gasoline, propane, and natural gas
High-rise constructions, hospitals, schools, as well as other facilities requiring a high level of fire protection frequently adopt type 1 construction.
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which occurs when neutral object a is charged by induction by charged object b?(a) An object gives another object an opposite charge without losing any of its own charge.(b) Excess electrons move from one object to another so both objects opposite charges.(c) An object produces electrons that are transferred to another object.(d) Free electrons are pulled away from their nuclei to flow through an object.
In induction, an object gives another object an opposite charge without losing any of its own charge. Correct option is A.
The charge of a charged particle or substance can be positive or negative. Naturally, charges with the opposite polarity attract and those with the same polarity repel. When something is charged, it either has a net positive charge or a net negative charge.
When the right circumstances are present, induction occurs and another object receives a net charge. Bringing a charged object up close to an uncharged object is the easiest way to make it happen. The originally neutral object now has a charge that is separated by an electrostatic force. There is no requirement for interaction.
So, the correct option is A.
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Each of the following lists two statements. Which two are the basic premises for the special theory of relativity?1. The laws of nature are the same for everyone.2. The speed of light is the same for everyone.
The 2 fundamental premises for the unique theory of relativity are:-
The laws of nature are identical for everyone.The rate of light is identical for everybody.Relativity is a theory in physics that was developed by Albert Einstein in the early 20th century. It has two main components: special relativity and general relativity.
Special relativity deals with the way that time, space, and motion are related. It shows that the laws of physics are the same for all observers, regardless of their relative motion. This means that time and space are not absolute, but rather depend on the observer's point of view. It also shows that mass and energy are equivalent, and can be converted into each other.
General relativity expands on special relativity and explains how gravity works. It describes gravity as the curvature of spacetime caused by the presence of massive objects. This curvature causes objects to move in a curved path, which we observe as the force of gravity. General relativity has been confirmed through numerous experiments and observations and is an essential part of modern physics.
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Complete Question:
Each of the following lists two statements. Which two are the basic premises for the special theory of relativity?