How many Newtons of force are on a 15kg object moving at 4m/s^s?

Find the momentum for a 2.6-kg brick parachuting straight downward at a constant speed of 8.4 m/s .

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

How to calculate voltage drop in a series circuit