A closed pipe is 0.60 m long. The air temperature is 20°C. What is the fundamental frequency in the pipe? What would be the frequency of the 2nd harmonic in this pipe? What would be the wavelength of the 5thing harmonic in this pipe?

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n