FAST I ONLY HAVE 20 mins before I have to turn it in What is the force that an 5kg cat has when it falls off a shelf due to gravity?

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

Which of the following are forms of phase changes a. freezing b. condensation c. heating d. exchanging

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?