The distance between planets varies as they move in their orbits. The minimum distance from the Earth to Mars is about 0.35 AU. About how many kilometers is that?

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

If the specific heat of a metal is 0.850 j/g °c, what is its atomic weight?