A57 kg skier starts from rest at a height of h = 27 m above the end of the ski-jump ramp. as the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. neglect the effects of air resistance and assume the ramp is frictionless.

(a) what is the maximum height h of his jump above the end of the ramp?
(b) if he increased his weight by putting on a backpack, would h then be greater, less or, the same?

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?