Student uses a magnet to move a 0.025 kg metal ball magnet exerts a force of 5n which causes the ball to begin moving what is the accelaration of the ball when it begins to move

What was the first instrument to ever record an earthquake?

The radius of an atom is closest in size to a

Arope has one end tied to a vertical support. you hold the other end so that the rope is horizontal. if you move the end of the rope back and forth with a frequency of 4 hz, the transverse wave you produce has a wavelength of 0.5 m. what is the speed of the wave in the rope?