If you double your speed, your kinetic energy will increase by:

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

=force × distance a. work b. velocity c. pressure d. momentum