A coin placed 30.0 cm from the center of a rotating, horizontal turntable slips when it's speed is 50.0cm/s. What force causes the centripetal acceleration when the coin is stationary relative to the turn table?

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.

Planck decided to assume that atoms could only vibrate at certain frequencies that were whole numbers eg 2f, 3f and so on. others used to think that atoms vibrate continuously

In psychology, a person who thinks that upbringing and environment are much more important than genes is more on the side of in the nature versus nurture debate.the answer in the blank is letter b which is nature. they are more on the nature and environmental side than the genetic side of species.