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kinetic energy
Kinetic energy can be measured, but the act of measuring it changes the kinetic energy of the object you are measuring. For example, you can measure the kinetic energy of a bullet fired from a gun by allowing the bullet to strike an known object and then measure the deflection/deformation of the target object. While it is possible to measure the kinetic energy of the bullet this way, the bullet itself is no longer moving after this measurement, and therefore your measurement caused a change in the bullet's kinetic energy. . Kinetic energy (E) can be calculated without changing the kinetic energy of the object under observation if you know the mass (m) of the object and if you can observe or calculate its velocity (v) using the equation E=(1/2)m/v2.
The momenta of the rifle and the bullet are equal and opposite. The bullet has greater kinetic energy than the rifle.
A speeding bullet has a ton of kinetic energy.
The Kinetic energy of the bullet is changed into heat energy, sound energy, and sometimes light energy but the total energy remains constant.
The kinetic energy of the speeding bullet is converted to heat and sound energy.
When the bullet penetrates into an object its velocity decreases very much or becomes 0 suddenly. This causes a change a momentum of bullet and impulse is applied. Technically the kinetic energy is converted to potential as a deformation occurs inside that object, transferring some of the kinetic energy into the object.
kinetic energy
Kinetic energy can be measured, but the act of measuring it changes the kinetic energy of the object you are measuring. For example, you can measure the kinetic energy of a bullet fired from a gun by allowing the bullet to strike an known object and then measure the deflection/deformation of the target object. While it is possible to measure the kinetic energy of the bullet this way, the bullet itself is no longer moving after this measurement, and therefore your measurement caused a change in the bullet's kinetic energy. . Kinetic energy (E) can be calculated without changing the kinetic energy of the object under observation if you know the mass (m) of the object and if you can observe or calculate its velocity (v) using the equation E=(1/2)m/v2.
The momenta of the rifle and the bullet are equal and opposite. The bullet has greater kinetic energy than the rifle.
A bullet racing by a non moving observer has kinetic energy.
A speeding bullet has a ton of kinetic energy.
The Kinetic energy of the bullet is changed into heat energy, sound energy, and sometimes light energy but the total energy remains constant.
A bullet racing by a non moving observer has kinetic energy.
Kinetic energy and sound energy.
A high kinetic energy, combined with a small cross section.
Friction can cause kinetic energy to change into thermal energy