1. Hans Gruber falls 32 stories from a window in Nakatomei Plaza. If Hans has a mass of 81.2 kg and accelerates at -6500 m/s? before coming to a stop, what force is exerted by the sidewalk?

increase masses, decrease separation

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

that would be because of both gravity and friction. so     c

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods