Problem: a table tennis ball has a positive charge of 7.0 × 10-8 coulombs. it experiences an electric force of 3.6 × 10-4 newtons at a point slightly above a positively charged table. calculate the magnitude of the electric field at this point. part a: enter the variable for the quantity you need to find. use your keyboard and the keypad to enter your answer. then click done.

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 !