Inside a space shuttle there are two identical boxes, but different content: one containts metal tools and the other foam for insulation. How can the astronaut know which is the one with the tools without opening it?

What process are sedimentary rocks formed from igneous rocks?

A boy pushes forward a cart of gravesites with a total mass of 40.0 kg. What is the acceleration of the cart if the net force on the cart is 60.0 N?

How many times smaller is the moon than earth?

What hits the atmosphere faster than 90,000 miles per hour a.) comets b.) meteors c.) meteoroids

The distance between two objects is increased by 3 times the original distance. How will this change he force of attraction between the two objects?

A 72-kg fisherman in a 114-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 5.0 m/s.

Roberto creates an animation titled "Flying through an Atom." The animation makes it seem as if the viewer passes all the way through an atom, starting from one side, then through the atom's center, and then leaving through the other side.

Which part of the ear vibrates at the frequency of sound waves

A submarine that is in the sea what principle is that

1. It takes 26.5 N to pull a 72 kg sled across snow. What is the coefficient of friction? 2. A 565 N rightward force pulls a large box across the floor with a constant velocity of 0.75 m/s. If the coefficient of friction is 0.