The speed of a wave is 130 m/sec. If the wavelength of the wave is 0.65 meters, what is the frequency of the wave?

Suppose you were asked to find the torque about point p due to the normal force n in terms of given quantities. which method of finding the torque would be the easiest to use?

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.