How much force is required to keep a 780 N box moving at a constant velocity across the floor if the friction force between the box and the floor 16N

What is the mass of the same rock on the earth

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 !

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.