Sound waves move through some liquid at a speed of 1500 m/s. if the wavelength is 3 m, what is the frequency of the wave? 1503 hz 4500 hz 0.002 hz 500 hz

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.