A sled is pulled at a constant velocity across a horizontal snow surface. If a force of 80 N is being applied to the sled rope at an angle of 53o to the ground, what is the magnitude of the force of friction of the snow acting on the sled?

Most energy in an ecosystem comes originally from_

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?