Asource of sound waves approaches a stationary observer through a uniform medium. compared to the frequency and wavelength of the emitted sound, the observer would detect waves with a? a) higher frequency and shorter wavelength b) higher frequency and longer wavelength c) lower frequency and shorter wavelength d) lower frequency and longer wavelength

(8%) problem 12. a bowling ball of mass mb 3 kg 's rolled down the lane with a velocity ofy-2/ m s lt strikes a single remaining pin mp 0.93 kg head on. after the collision the bowling ball has a velocity (in the same direction) of v2 1.1 m/s. = ▲ 33% part (a) write an expression for the velocity of pin in the horizontal direction after the impact, im ,, 33% part (b) what is the pins speed in ms? 33% part (c) assuming the coefficient of friction s μ,-0.1. how far in meters could the pin slide before stopping if it doesn't topple?