In a lab, two identical lab carts (m = 1.0 kg) travel toward each other, each with a speed of 2.0 m/s. the car collide, and one cart moves to the right with a speed of 3 m/s and the other moves left with a speed of 2 m/s. what best explains the results of the experiment?

Research the neutrino using the internet and report your findings. in a nuclear decay, the nucleus of an atom splits apart. larger particles can be detected and their masses and velocities can be recorded. explain how the existence and properties of the neutrino could be predicted using the conservation laws.

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?