O An elastic loaded balloon launcher fires balloons at an angle of 38.0 from the
surface of the ground. If the initial velocity is 25.0 m/s, find how far away the
balloons are from the launcher when they hit the level ground again.

How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?

(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

Newtons view of arrangement of the universe