The diagram shows water waves made by a wave machine in a swimming pool. Every second, two waves go past a person standing in the swimming pool.
The waves have a wavelength of 0.8 metres.
Calculate the speed of the water waves.

What is work? how much work is done to move an object 0 meters?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.