The turntable in a microwave oven has a moment of inertia of 0.038 kg m2 and is rotating once every 4.6s. what is its kinetic energy?

What type of nuclear decay causes the atomic number of an element to increase by 1?

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?