If a car is moving backward and has negative acceleration, the speed of the car is slower.
Negative acceleration = slower speed or faster reverse.
What is the definition of Speed ?Velocity defines the path of movement of a frame or object. Velocity is often a scalar quantity. Velocity is primarily the magnitude of the vector. Mile is the rate of change of distance. It is the responsibility of the trade of oppression.
What is acceleration?Acceleration is defined as the change in object velocity over time. Acceleration is a vector term and requires both magnitude and direction to define it. Units of acceleration are m/sec², miles/sec², etc.
In a velocity versus time graph, acceleration is the slope of the curve.
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what do you call a wave that is made up of electric and magnetic fields?
A wave that is made up of electric and magnetic field is called an electromagnetic wave. They are produced by oscillations if both the fields.
An electromagnetic wave is produced when an electrical field come in contact with a magnetic field. An electric wave is produced by a charged particle. When a charged particle moves, magnetic waves are formed. So when a charged particle moves an electromagnetic field is formed. An electromagnetic wave is simply electrical and magnetic field moving with the speed of light.
The oscillation of electric field and magnetic field is perpendicular to the direction of the wave. Electromagnetic spectrum is the spectrum of waves arranged in order of increasing wavelength.
Examples are Gamma rays, X-rays, UV, Visible light, Infra red and radio waves.
So the wave that is made up of both electrical and magnetic fields are Electromagnetic waves.
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the rate of diffusion is ___________ related to concentration, temperature, and pressure meaning that an increase in concentration, temperature, or pressure results in an ___________ in the rate of diffusion.
The rate of diffusion is directly related to concentration, temperature, and pressure meaning that an increase in concentration, temperature, or pressure results in an increase in the rate of diffusion.
This is because diffusion is a process where particles move from an area of high concentration to an area of low concentration, driven by a concentration gradient. As the concentration gradient increases, more particles move from the high concentration area to the low concentration area, resulting in a faster rate of diffusion.
Temperature also affects the rate of diffusion because it affects the kinetic energy of the particles. At higher temperatures, particles have more kinetic energy and move faster, leading to a higher rate of diffusion.
Pressure affects the rate of diffusion because it affects the concentration gradient. An increase in pressure can compress the gas and increase the concentration gradient, resulting in a higher rate of diffusion.
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non-volatile memory is temporary and loses its contents when the power is turned off.true/false
The given statement, Non-volatile memory is a type of memory that retains its contents even when the power is turned off is true because non-volatile memory devices are designed to store data in a way that is not dependent on the presence of an external power source.
Non-volatile memory is a type of computer memory that can retain its contents even when the power is turned off. This is different from volatile memory, which loses its contents when the power is turned off.
Examples of non-volatile memory include read-only memory (ROM), flash memory, and magnetic storage devices like hard drives and solid-state drives. These types of memory are used to store data and programs that need to be preserved even when the computer is turned off or loses power.
Therefore, the statement that non-volatile memory is temporary and loses its contents when the power is turned off is true. Non-volatile memory is designed to retain its contents even when the power is turned off, making it an essential component of computer systems.
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What is 35.6 degrees Celsius in Fahrenheit?
In Fahrenheit, 35.6 degrees Celsius is equivalent to 128.08 degrees.
Use the formula below for the convert 35.6 degrees Celsius to Fahrenheit:
°F = (°C x 1.8) + 32
The process of translating a temperature from one scale to another is referred to as temperature conversion. Temperature conversions between the several regularly used temperature scales, including Celsius, Fahrenheit, and Kelvin, are frequently required.
where the temperature is expressed in degrees Fahrenheit (°F) and degrees Celsius (°C).
Plugging in 35.6 degrees Celsius yields the following results:
°F = (35.6 x 1.8) + 32 °F
=> 96.08 + 32 °F
=> 128.08
As a result, 35.6 Celsius is equivalent to 128.08 Fahrenheit.
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The manufacturer of a 12V car headlightspecifies it will draw a current of 6A. You would like to checkthis claim with an ammeter designed to measure currents up to 10Aand having a resistance of 0.1 Ohms.a)Which of the two figures represents acircuit where the ammeter correctly measures the current in theheadlight?b) How much current (in A) would flow in the ammeter forCircuit a?c) How much current (in A) flows through the ammeter for Circuitb?
A) Circuit A is an example of a circuit in which the ammeter accurately records the current flowing through the headlamp.
B) In Circuit A, the ammeter's current would be 6 A because it is wired in series with the headlight and has no impedance.
C) In Circuit B, 5.9 A of current would be passing through the ammeter.
Electrical equipment used to detect electrical current is called an ammeter. It measures the current immediately and is connected in series with the circuit. The ammeter is a particular kind of galvanometer, a tool used to identify and measure tiny electric currents. An electromagnet is used to measure the intensity of the magnetic field created by the ammeter around the conductor that is carrying the current.
Current flowing through the conductor immediately relates to the field's strength. Both straight and alternating currents can be measured using the ammeter. It is typically connected in series with the circuit and has a minimal resistance to make sure that all of the current passes through it. The ammeter is a crucial tool in the study of electricity because it can also detect extremely small currents.
Circuit A measures the current in the headlight.
For Circuit A, as the ammeter has no resistance and is connected in series with the headlight.
For Circuit B, the current flowing through the ammeter would be 6 A - 0.1 A = 5.9 A.
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how to make 6 degrees celsius to fahrenheit?
6 degrees Celsius make 42.8 Fahrenheit. The calculation to convert from Fahrenheit to Celsius takes the Fahrenheit temperature, subtracts 32 from it, and then multiplies the result by 5/9.
To convert a temperature from degrees Celsius (°C) to degrees Fahrenheit (°F), use the formula [tex]F = (C * 9/5) + 32.[/tex]
Therefore, to convert 6°C to Fahrenheit, we would use the following calculation:
[tex]F = (6C * 9/5) + 32[/tex]
[tex]F = (54/5) + 32[/tex]
°F = 10.8 + 32
°F = 42.8
Therefore, 6°C is equal to 42.8°F.
This conversion formula takes into account the difference between the two temperature scales, with Fahrenheit being the higher temperature scale and Celsius being the lower temperature scale.
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James has ¥9.44 in Burundi and using the amount of apples he can buy in London, Calculate the mass of the Sun. Using that information, square root 5.3r% of Earth’s mass powered by the square root of 2.5pi and then assume he bought 8.33 apples and has 3pi¥ remaining. Now, convert your answer into standard form and multiply it by the average body weight of a 77 year old male from Sweden divided by the mass of a 18 year old woman from Poland. This question is worth 16 marks
Answer: 42
Explanation:
if the electric potential at some point is large, is the electric field at that point also necessarily large or not?
As a result, when the electric potential at a place is high, a big electric field is not necessary.
What is meant by electric potential?Electric potential is the effort required to transport a single charge from one location to another in the presence of an electric field. Earth is typically chosen as the reference point, however any location beyond the range of the electric field charge can be used.
What is the definition of electric potential in the SI system?We all know that the electric potential between two locations is represented by the letter (V), which is also called as voltage. Moreover, it can be described in terms of joule per coulomb or electrostatic force (E.M.F). Volt is the SI unit for electric potential.
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How to convert 97.9 f to c
97.9°F is equivalent to 36.6°C.
A temperature unit developed from the SI (International System of Units) is Celsius (symbol: °C).
Prior to the adoption of the metric system, Fahrenheit (symbol: °F) was a commonly used measurement of temperature.
To convert Fahrenheit (°F) to Celsius (°C) we have to first subtract 32 from Fahrenheit and then multiply it by .5556 or 5/9.
We have to convert 97.9 degrees Fahrenheit (°F) to Celsius (°C),
We can use the following formula:
°C = (°F - 32) x 5/9
As per the given information,
°F = 97.9
Substituting the value 99.3 for °F,
We get:
°C = (97.9 - 32) x 5/9
°C = 36.6
Therefore, 97.9°F is equivalent to 36.6°C.
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To convert 97.9 degrees Fahrenheit to Celsius, use the formula C = (F - 32) * 5/9. After plugging in the F value, it's found that 97.9 degrees Fahrenheit is approximately 36.6 degrees Celsius.
Explanation:This involves Mathematics in the form of formula application. The question is asking how to convert 97.9 Fahrenheit (F) to Celsius (C). The formula to do this is: C = (F - 32) * 5/9. Plugging in the Fahrenheit value, we get:
C = (97.9 - 32) * 5/9
. This simplifies to:
C = 65.9 * 5/9
. Finishing the calculation, we get:
C ≈ 36.6
. Thus, 97.9 degrees Fahrenheit is approximately 36.6 degrees Celsius.
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Rank each pendulum on the basis of the maximum kinetic energy it attains after release. Rank from largest to smallest to rank items as equivalent, overlap them.
The kinetic energy depends on the velocity which is in turn dependent on the position of the pendulum bob per time.
How is the kinetic energy of the pendulum determined?Your question is incomplete but has something to do with the kin etic energy of the pendulum.
To calculate the velocity of the pendulum, we need to first determine the amplitude of the pendulum swing, which is the maximum angle of displacement from the equilibrium position.
It's important to note that the kinetic energy of a pendulum is not constant throughout its swing, but rather changes as the pendulum moves back and forth. The maximum kinetic energy is reached at the bottom of the swing when the velocity is at its highest.
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at a typical synapse, the chemically-gated channels that open when a neurotransmitter binds to its receptor are found here:
Chemically-gated channels that open when a neurotransmitter binds to its receptor are found in the post-synaptic membrane at a typical synapse.
When an action potential reaches the end of an axon, it triggers the release of a neurotransmitter into the synaptic cleft, which then binds to the receptors on the post-synaptic membrane. This binding causes the chemically-gated channels to open, allowing ions to flow across the membrane and resulting in a change in the membrane potential of the post-synaptic neuron. This change in potential can either trigger or inhibit the firing of an action potential in the post-synaptic neuron, depending on the type and amount of neurotransmitter released.
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huge rolating cloud particles In space gravitate together forming increasingly dense ball, it shrinks size and rolales slower
a. trueb. false
Answer: b
Explanation: no cule
M/J Comprehensive Science, 1.02 Types of Forces Lab Report.
Objective: The purpose is to test whether the surface texture of the ground affects the distance the object can roll.
Use 2 Books, or Bricks, and a Hard-Book as a ramp, to use a marbel ball, and use Resources, as a flat bottom surface, to see how long
Hypothesis: If an object rolls over __(Type of material), then it will ___(Describe the prediction of distance it will travel).
Materials:Towel, Cotton, sandpaper, to see how long it alters the distance.
Objective:
A Marbel Ball, and a Hard Cover Book, to use as a Ramp. Use Resurces shown, as a flat surface, to see how long their distance it takes, until it comes to a stop, then measure the distance it traveled, to its stop.
The results of the experiment showed that the surface texture of the ground affects the distance the object can roll. The towel had the longest distance traveled at 20 cm, followed by the sandpaper at 25 cm.
What is the distance ?The distance between two points is the length of the straight line connecting them. It is a measure of the space between them, and is typically calculated using the Pythagorean Theorem. In two-dimensional space, the distance between two points (x1, y1) and (x2, y2) is calculated as: Distance = √ (x2−x1)2 + (y2−y1)2. In three-dimensional space, the distance between two points (x1, y1, z1) and (x2, y2, z2) is calculated as: Distance = √ (x2−x1)2 + (y2−y1)2 + (z2−z1)2.
1. Place the hard cover book on a flat surface.
2. Place the marble ball at the top of the book.
3. Place the towel, cotton, and sandpaper on the flat surface.
4. Roll the marble down the book, and measure the distance it travels until it comes to a stop.
5. Record the distance it traveled.
6. Repeat the process for each of the surfaces.
7. Calculate the average distance traveled for each surface.
Results:
Surface Distance Traveled (cm)
Towel 20 cm
Cotton 15 cm
Sandpaper 25 cm
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How to convert 95f to c?
95°F is equivalent to 35°C temperature. Using Formula: °C = (°F - 32) x 5/9.
A measure of something's heat or coldness is its temperature. The most often used temperature scales globally are Celsius (°C) and Fahrenheit (°F), while there are other scales as well.
To convert Fahrenheit to Celsius, you need to subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9. This formula works because the freezing point of water is 32°F and 0°C, and the boiling point of water is 212°F and 100°C. So, a change of 1 degree Fahrenheit is equivalent to a change of 5/9 degree Celsius.
To convert 95 degrees Fahrenheit (°F) to Celsius (°C), you can use the formula:
°C = (°F - 32) x 5/9
Substituting 95 for °F in the formula, we get:
°C = (95 - 32) x 5/9 = 35
Therefore, 95°F is equivalent to 35°C.
To remember this formula, you can use the mnemonic: "First subtract 32, then multiply by 5/9".
Alternatively, you can use online temperature converters or smartphone apps to quickly and accurately convert between different temperature scales.
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Why do some photons travel right through the atom unchanged while others are absorbed?A) Only photons of specific frequencies can promote an electronic transition.B) Only visible light photons can interact with electrons.C) Only a few photons get deflected by the nucleus since it's only a tiny part of the atom's volume.D) Only negatively charged photons interact with atoms.
We are aware that electromagnetic radiation is governed by Maxwell's equations in electromagnetism. The EM wave equation can be derived from Maxwell's equations. 2Ex2 = 1c2Et2, and 2Et2 = 2Ex2.
Describe electromagnetic.
electromagnetic is defined as being of, relating to, or created by electromagnetism. Examples include a magnetic field due to electric current and electromagnetic.
The electromagnetic force is what?
The research of the electrostatic field is a component of the science of electromagnetism. It is a sort of particle-particle interaction that involves electrical charges The electromagnetic force, which combines magnetic and electrical forces, acts between charged particles.
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is linear momentum conserved
Linear momentum is conserved if the total momentum of a system before and after an interaction or collision remains the same.
Linear momentum is conserved if the total momentum of a closed system remains constant over time. If the total momentum is the same in both the initial and final states, then the linear momentum is conserved. This is known as the law of conservation of linear momentum.
The conservation of linear momentum is applicable to all systems where no external forces are acting on the system. External forces may include friction, air resistance, or other forms of resistance. Therefore, it's important to consider all the forces acting on the system before determining if linear momentum is conserved.
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--The complete question is, How do you know if linear momentum is conserved?--
would defining the charge on an electron to be positive have any effect on coulomb’s law?
Yes, defining the charge on an electron to be positive have any effect on coulomb’s law.
If we change the sign of the charge, the magnitude of electric force will not be effected but the direction of the electric force will be changed.
The magnitude of force between the charged particles is directly related to the amount of charge carried by each particle not its sign. This means that the force will not be changed if we alter the sign of the charge.
The direction of electric force between the charge depends on the sign of charge. If the charges carry same sign, the force is repulsive and if the charges carry opposite signs the force would be attractive.
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When you remove the lid from a food container that has been left in a freezer for several months, you discover a large collection of ice crystals on the underside of the lid. Explain what has happened.
When you remove the lid from a food container that has been left in a freezer for several months, the cold air inside the container causes the moisture inside the container to freeze onto the underside of the lid.
Food container that has been left in a freezer for several months we discover a large collection of ice crystals on the underside of the lid this is due to the formation of a layer of ice crystals as the water vapor in the container condenses and freezes onto the cold surface of the lid. This process is known as sublimation and is why you find a layer of ice crystals on the underside of the lid.
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which unit would be most appropriate for measuring the volume of a rain drop?
Milliliters (ml) or cubic millimetres are the most suitable units for calculating a raindrop's volume (mm3).
Raindrops are quite tiny and usually have volumes between 0.1 and 0.5 millilitres. Small, precise volume measures like millilitres or cubic millimetres are ideal for measuring these volumes.
A raindrop's volume can change depending on its size and form, as well as external conditions like air pressure and temperature.
For measuring the volume of a single raindrop, units of volume such as litres or cubic metres are too vast and would not offer sufficient precision. Thus, the units that are best suited for measuring the volume of a raindrop are millilitres or cubic millimetres.
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Two Staters are moving across the ice at rate of 2.3m/s when the 85kg man pushes the 66kg woman in such a way that he stops. What speed will she move after the push?
The woman will be moving at a speed of 5.2 m/s after the push.
What is speed?Speed is the rate at which an object or person moves from one place to another. It is measured in distance over time, such as meters per second, miles per hour, or kilometers per hour. Speed is a scalar quantity, meaning it has magnitude but no direction.
The man and woman are moving with the same speed before the push, so they must be moving with the same speed after the push. This is because momentum must be conserved. Momentum is equal to the mass times the velocity, so the momentum of the two-stater system before the push is equal to the momentum of the system after the push. We can calculate the momentum before the push by multiplying the total mass (85kg + 66kg = 151 kg) and the velocity (2.3 m/s), and find it to be 344.3 kg*m/s. We can then calculate the velocity of the woman after the push by dividing the momentum by the mass, and find it to be 344.3/66 = 5.2 m/s. Therefore, the woman will be moving at a speed of 5.2 m/s after the push.
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a cliff on miranda is 5.00 km high. it appears on the limb at the 11 o'clock position in part a of the figure above and is magnified in part (b) of the figure above. a devotee of extreme sports runs horizontally off the top of the cliff at 7.90 m/s. for what time interval is he in flight?
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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For a pair of objects, the center of mass is located.
Choose one: A. along the line between the two objects, closer to the less massive object.
B. at the center of the less massive object.
C. at the center of the more massive object.
D. along the line between the two objects, closer to the more massive object.
For a pair of objects, the center of mass is located option (D) along the line between the two objects, closer to the more massive object.
The center of mass is the point at which the mass of a system is concentrated and behaves as if it were a single point. For a pair of objects, the center of mass lies along the line joining the two objects and is closer to the more massive object.
This is because the more massive object exerts a greater gravitational pull, which pulls the center of mass closer to it. The distance of the center of mass from each object is inversely proportional to the mass of the object. Therefore, the more massive object will have the center of mass closer to it.
Therefore, the correct option is (D) along the line between the two objects, closer to the more massive object.
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How does the Hood Canal Bridge work?
The Hood Canal Bridge is a floating bridge that uses pontoons to support the weight of the bridge deck and allow for water traffic to pass underneath.
The Hood Canal Bridge is a floating bridge that spans the Hood Canal, a narrow and deep fjord in Washington State, USA. The bridge is made up of two parallel pontoons, each over 2,500 feet long, that are connected by a series of trusses and beams.
The pontoons float on the surface of the water and are stabilized by a system of cables and anchors that hold them in place. The bridge is supported by over 80 concrete pillars that are anchored to the sea floor. The bridge can be opened to allow boats and ships to pass through by raising the pontoons using hydraulic jacks, which are powered by two diesel engines.
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what quantity determines how hard it is to change an object’s motion / velocity?
Mass is the quantity that determines how hard it is change an object's motion or velocity.
Velocity is a vector quantity, i.e., it has both magnitude and direction. Velocity is the rate at which an object moves and is expressed in terms of m/s. The change in velocity of an object over a specific period of time is called the acceleration of that object. To determine how hard it is to change the object's motion or velocity, you need to be familiar with a quantity called its mass.
According to Newton's second law of motion, the force applied on an object to move it can be illustrated by the formula:
F = m*a, where F is the force, m is the mass, and a is the acceleration of the object. Thus, we can say that mass determines how hard it is to change the motion or velocity of the object. If it is a lighter object, it can be accelerated easily with a less force applied, while a heavier object would require more efforts and hence more force would be applied to change its state.
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What is the excess charge on a conducting sphere of radius R=0.15m if the potential of the sphere is 1500V and V=0 at infinity?A2.5μCB2.5nCC2.5mCD25nC
2.5 μC is the excess charge on the conducting sphere. The correct answer is A.
We can use the formula for the electric potential of a conducting sphere to find the excess charge on the sphere.
V = k * Q / R
where V is the potential, k is Coulomb's constant (9 × 10^9 N·m^2/C^2), Q is the excess charge on the sphere, and R is the radius of the sphere.
We can rearrange this formula to solve for Q,
Q = V * R / k
Substituting the given values,
Q = (1500 V) * (0.15 m) / (9 × 10^9 N·m^2/C^2)
Q = 2.5 × 10^-6 C
Therefore, the excess charge on the conducting sphere is 2.5 μC (microcoulombs), which corresponds to answer A.
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What is value of Stefan-Boltzmann constant?
The Stefan-Boltzmann constant (represented by the symbol σ) is a physical constant that relates the intensity of thermal radiation emitted by a blackbody to its temperature.
It is named after the Austrian physicist Josef Stefan and the Dutch physicist Ludwig Boltzmann.The value of the Stefan-Boltzmann constant is approximately 5.67 x 10^-8 watts per square meter per Kelvin to three significant figures.
The exact value of the constant is:
σ = 5.670374419... x 10^-8 W/(m^2.K^4)
where W is watts, m is meters, and K is Kelvin, which are the units of power, distance, and temperature, respectively.
The Stefan-Boltzmann constant is used in many fields of physics and engineering, particularly in the study of thermodynamics, astrophysics, and radiative heat transfer. It is a fundamental constant in physics, and its value has been determined experimentally with high precision.
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frequency formula velocity
Frequency can be found from velocity by dividing the velocity by the wavelength of the wave.
To find the frequency from velocity, you need to know the velocity of the wave and the wavelength of the wave. The frequency is simply the speed of the wave divided by its wavelength.
The formula for frequency (f) is,
f = v / λ
Where v is the velocity of the wave and λ is the wavelength of the wave. Velocity is usually measured in meters per second (m/s) and wavelength is measured in meters (m). The resulting frequency is measured in hertz (Hz), which represents the number of complete wave cycles that occur in one second.
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--The complete question is, How do you find frequency from velocity?--
what is physics formula sheet
A physics formula sheet is a document that lists the most important equations and formulas used in physics.
It is a useful reference for students and professionals who need to quickly access formulas for various physics problems. The specific content of a physics formula sheet may vary depending on the level and type of physics being studied.
Some common topics covered in a physics formula sheet include:
Mechanics: formulas for motion, forces, work, energy, and momentum
Waves and Optics: formulas for wave properties, optics, and sound
Thermodynamics: formulas for heat, temperature, and energy
Electricity and Magnetism: formulas for electric fields, magnetic fields, and circuits
Modern Physics: formulas for relativity, quantum mechanics, and nuclear physics
It's important to note that a physics formula sheet is not a substitute for understanding the concepts and principles behind the formulas. It's always a good practice to derive and double-check the formulas rather than just memorizing them.
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As the temperature of an air mass increases, its volume also increases and its density ______.
Answer:
Explanation:
density = mass/volume
So if mass and volume increase, density also increases
10. An electric kettle is rated as having an input power of 1.50 kW and an efficiency of 65.0%. The kettle is switched on for 2.00 minutes.
How much energy is transferred to the water in the kettle?
The amount of electrical energy transferred to the water in the kettle is found to be 117,000 Joules.
Explain about the term electrical energy?You come into contact with an examples of electrical energy every time you use a battery or plug in an appliance. Another sort of energy can be converted into electrical energy as well. Solar cells and wind turbines are two examples of devices that convert light into electricity.Electrical energy E.
Input Power P = 1.50 kW = 1500 W.
Time t = 2 minutes = 120 seconds.
Efficiency = 65%.
E = P*T
E = 1500*120
E = 180,000 Joules.
Energy transferred = 0.65*180,000
Energy transferred = 117,000 Joules.
Thus, the amount of energy transferred to the water in the kettle is found to be 117,000 Joules.
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