What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Arrange the images in order to show how lake-effect snow occurs.