The velocity of a 150 gram ball changes from < 10, −5, 0 > m/s to < 10.2, −5.6, 0 > m/s in 0.07 s, due to the gravitational attraction of the Earth and to air resistance.

a. What is the acceleration of the ball?
b. What is the rate of change of momentum of the ball?
c. What is the net force acting on the ball?

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

(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

A( developed during the process of technology design