Determine recoil velocity and loss in kinetic energy given mass and initial velocity. No specific example I just need an explanation as to how to approach a problem, like what formula to use and why.

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?