A building has different types of openings, such as windows and doors. Do you think a cell also has a different type of openings? Give an explanation for your answer

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt