Consider a different scenario in which the carts stick together after the collision. The masses of the heavier and lighter cart are and , respectively. Derive an expression for the fraction of kinetic energy lost during the collision. Express your answer in terms of and .

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

Which branches of natural science include the study of an organism that lived 10 million years ago

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?