What happens when an object is rubbed against another object to charge by friction? A. electrons are transferred from one object to another
B. electrons in one of the objects disappears
C. electrons in one object suddenly become negatively charged
D. electrons are created by the friction between the objects

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

How have the competing explanations' experiments on atoms affected the development of the atomic model?

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?