A body weighs 63 N on the surface of the earth. What is the gravitational force on to the earth at a height of 3200 km from the earth's surface? (Radius of the earth is 6400
km)​

Which situation will have the highest resistance? a. long wire and high temperatureb. short wire and high temperaturec. long wire and cold temperaturedshort wire and low temperature

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?