A soccer ball is sitting at the top of a 45 m tall hill before it is kicked off. The ball weighs .43 kg. What is the potential energy of the ball before it is kicked? a.189.63 J
b.189.63
c.94.815 J
d.94.815

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

What is the major limitation to the light microscope?

Select all the correct answers.which two statements are true? a moving magnetic field creates an electric field.a constant magnetic field creates an electric field.a constant electric field creates a magnetic field.a moving electric field creates a magnetic field.resetnext