The crest of an ocean wave that has an amplitude of 1 meter intersects another wave crest with an amplitude of .75 meter. What is the resulting amplitude? Sketch this and show your calculations.

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?