1) a thin spherical shell of mass 0.25kg and radius 0.15 m is released from rest from the top of a 3.0-m high ramp. What would the linear speed be at the bottom if it rolls without slipping?
2) a standing wave is in a open-end tube as shown. the tube legth is L = 1.80m . Determine
a) the wavelength of the standing wave
b) fundamental frequency