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Duely Cack
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1. A 75-g phonograph album of 30-cm diameter spins at 33.3 rpm. What is its kinetic energy?
Duely Cack said:1. A 75-g phonograph album of 30-cm diameter spins at 33.3 rpm. What is its kinetic energy?
Duely Cack said:well i think that Kinetic Energy is 1/2mv2so is it like that but instead of v you put in the 33.3 rpm. like 1/2(75)(33.3)2 maybe?
Kinetic energy is the energy an object possesses due to its motion. It is a scalar quantity that depends on the mass and velocity of the object.
The kinetic energy of a rotating object can be calculated using the formula KE = 1/2 * I * ω^2, where KE is the kinetic energy, I is the moment of inertia, and ω is the angular velocity of the object.
The kinetic energy of a rotating object depends on its mass, moment of inertia, and angular velocity. Increasing any of these factors will increase the object's kinetic energy.
Yes, kinetic energy is conserved in a rotating system as long as no external forces are acting on the system. This is known as the law of conservation of angular momentum.
Kinetic energy and rotational motion are closely related. In a rotating object, kinetic energy is transformed into rotational energy, which is the energy of the object's motion around an axis.