An 8 kg block is pushed across a horizontal surface by a horizontally oriented force whose magnitude varies in time. The instantaneous power supplied by the pushing force to the block is P subscript p u s h end subscript open parentheses t close parentheses equals open parentheses 4 straight W over straight s cubed close parentheses t cubed If the block starts at rest at t = 0 s, what is the displacement (in m) of the block after 3 s?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !