Sam heaves a 16 id shot straight upward, giving it a constant upward acceleration from rest of 32m/s^2 for a height 68.cm. he releases it at height 2.10m above the ground.

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

(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