Asmall metal sphere has a mass of 0.14 g and a charge of -22.0 nc . it is 10 cm directly above an identical sphere with the same charge. this lower sphere is fixed and cannot move. part a what is the magnitude of the electric force between the spheres?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

(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

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?