An applied force changed the momentum of a shopping cart by 10 kg m/s. If the applied force was 20 N, how long was the duration of the force? Group of answer choices
0.5 seconds
2 seconds
30 seconds
200 seconds

Alexander calder's mobiles are an example of motion because it uses forces of wind and water.

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.