a stone of mass 5g is projected with a rubber catapult. If the catapult is stretched through a distance of 7 cm by an average force of 70N, calculate the instantaneous velocity of the stone when released.​

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

(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