A 64.0 kg skier approaches the foot of a hill with a speed of 14.0 m/s. The surface of this hill slopes up at 50^o above the horizontal and has coefficients of static and kinetic friction of 0.750 and 0.250, respectively, with the skis. A) Use energy conservation to find the maximum height above the foot of the hill that the skier will reach.
B) Will the skier remain at rest once she stops, or will she begin to slide down the hill?

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg