Aball is attached to a string and rotates in a circle. if it takes 1.00 s to complete one revolution, what is the angular velocity of the ball?

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

Use 4 to 5 complete sentences, explain the concepts of beats and how beats are produces.

Which statements did both aristotle and ptolemy assume? check all that apply.