Amass of 240 g oscillates on a horizontal frictionless surface at a frequency of 3.0 hz and with amplitude of 4.5 cm. (a) what is the effective spring constant for this motion? (b) how much energy is involved in this motion?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

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

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?