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the energy of a body or a system with respect to the motion of the body or of the particles in the system

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12y ago
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5mo ago

Kinetic energy is the energy possessed by an object due to its motion. It is directly proportional to the mass and velocity of an object, where the formula for kinetic energy is KE = 0.5 * m * v^2, with m being the mass and v being the velocity of the object.

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11y ago

kinetic energy means that an object is in motion...... opam Gangnam Style!

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12y ago

it is a movement energy

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Q: What is kineticenergy?
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Is the energy acquired by a body because of its motion is called potential energy?

No, energy created from movement is called Kineticenergy. Potential energy is energy created from no moving sources.


How many days does it take astronauts to get to the sun?

The farthest away from Earth that any astronaut has ever been is about one-quarterof one percent of the distance to the sun. No astronaut has ever even tried to go tothe sun, and neither has any unmanned space probe. That's one of the most difficultmissions for a space launch. Anything that starts out from Earth has so much kineticenergy being in Earth's orbit around the sun, that it would take a huge amount of fuelto reduce its velocity enough to fall anywhere close to the sun.And then there's that small matter of burning up . . .


Can you convert voice energy to electrical energy?

Yes it is possible to convert sound energy to electrical energy by using the vibrations (sound's mechanical kineticenergy) to drive a microphone, of which there are several types. Such an energy-converter generally is called a transducer: a loudspeaker is also a transducer, working the other way round.One microphone type moves a fine coil across a magnetic field, thus inducing a tiny electrical current matching the sound's frequency and proportional toits amplitude. The pick-up on an electric guitar works in a somewhat similar way, there by the steel stringaltering the magnetic field around a coil to induce the currentOther microphones by using the sound pressure to vary the capacitance or the resistance of thesensing unit itself.Still other microphones and their underwater equivalents, "hydrophones",use piezo-electric ceramic as the transductive element. A piezo-electric material generates a small voltage across it in response to the changing strainscreated by the changing stresses of the sound's presure.I used italics to help you see it uses the fundamental difference between stress and strain.With all these devices, the output is fed to a suitable amplifier to increase the tiny currents to something more useful.


Why an object at 200 degrees Celsius is twice as hot as one at 100 degrees Celsius?

First of all, the expression "twice as hot" is, frankly, quite meaningless. Or rather,it is so full of so much meaning that different people see different meanings in it.In order to make any progress toward an answer, we first have to agree on what"twice as hot" means. And since the question is no help in this regard, I get to define it !I'm going to say that "twice as hot" means having double the average kineticenergy of its constituent molecules as compared with an object of identical size,shape, and composition. In other words, an object containing exactly double theamount of heat energy per unit volume compared to another identical object.In that case, one object is twice as hot as the other one when its temperatureis double the temperature of the other one on an absolute scale of temperature.The absolute scale of temperature begins at Zero Kelvins, -273.15° Celsius,-459.67° Fahrenheit, etc.So an object at 200° Celsius is 473.15/373.15 = 1.268 times as hot as anidentical object at 100° Celsius.And the original question of "Why is it . . ." is moot, because it ain't.


Uniform solid sphere with dia 28cm and mass 2.5kg rolls without slipping on a horz surface at a constant speed of 2.0 m per s What is its rotational kineticenergy and total kinetic energy and ang mome?

The rotational kinetic energy of the sphere can be calculated using the formula ( KE_{rot} = \frac{1}{2}I\omega^2 ), where ( I = \frac{2}{5} m r^2 ) for a solid sphere. Given the diameter as 28 cm, the radius would be 14 cm (0.14 m). Calculate the angular velocity (( \omega )) from the linear velocity, and then use these values to find the rotational kinetic energy. Total kinetic energy would be the sum of rotational and translational kinetic energy. Angular momentum can be calculated as ( L = I\omega ). Calculate these values using the given data.


When energy is converted from one form to another does the amount of energy converted increase decrease or the stay the same?

The total amount of energy stays the same when it is converted from one form to another. This is known as the law of conservation of energy, which states that energy cannot be created or destroyed, only transferred or transformed from one form to another.