Aslinky is stretched across a classroom and moved up and down at a frequency of 3 hz. if the corresponding wave velocity is 6.6 m s , determine the wavelength of the slinky wave. a) 0.45 m b) 2.2 m c) 9.9 m d) 19.8 m

What happens to light waves from a star as the star moves away from earth?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?