Apellet gun is shot at a cardboard box of mass m2 = 0.65 kg on a frictionless surface. the pellet has a mass of m1 = 0.0145 kg and flys at a velocity of v1 = 79 m/s. it is observed that the box is moving at a velocity of v2 = 0.43 m/s after the pellet goes through it.1. write an expression for the magnitude of the bb's velocity as it exits the box vf.
2. what is the bb's final velocity vf, in meters per second?
3. if the bb doesn't exit the box, what will the velocity of the box v'2, be in meters per second?

Distinguish between a transverse wave and a longitudinal wave.

Did the proton move into a region of higher potential or lower potential? did the proton move into a region of higher potential or lower potential? because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential.because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential.because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential.because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential.request answerpart bwhat was the potential difference that stopped the proton? express your answer with the appropriate units.î”v î” v = nothingnothingrequest answerpart cwhat was the initial kinetic energy of the proton, in electron volts? express your answer in electron volts.ki k i = nothing ev request answerprovide feedback

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f