A truck weighing 30000 newtons was driven up a ramp that is 1600 meters long to a level area that is 800 meters above the starting point. If the trip 480 seconds, what was the minimum power required?

How much work would a child do while puling a 12-kg wagon a distance of 3m with a 22 n force directed 30 degrees with respect to the horizontal? (a) 82j (b) 52j (c) 109j (d) 95j

If a balloon is taken outside on a very cold day, what will occur?

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?