Part
Vary the mass of the skateboarder using the slider. Using several different values for mass,
drag the skateboarder to the top of the ramp. How does her mass affect the amount of
potential energy she gains when she reaches the top of the ramp?

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w