If a skydiver with a total mass of 82.0 kg jumps out of a plane what would her acceleration be if the air resistance is equal to 1/4 her weight?

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

An asteroid is discovered in a nearly circular orbit around the sun, with an orbital radius that is 2.47 times earth's. what is the asteroid's orbital period, its "year," in terms of earth years?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost