Which statement best describes beaches?

a.) beaches are always changing due to factors such as waves adding and eroding sand.

b.) beaches change little over time as waves follow the same patterns year after year.

c.) beaches change little over time as wind patterns stay the same.

d.) beaches change little over time as waves move further up the shore.

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.

Which is an advantage of subdividing science into different areas?