Which of two factors influence the weight of an object due to gravitational pull?
a. the mass and radius of the planet
b. the shape and radius of the planet
c. the rotation and mass of the planet
d. the composition and rotation of the planet?

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero