3. A 2.6-gram bullet is fired horizontally from a short- barreled rifle. The 38-cm barrel of the rifle exerts an average force of 65 N on the bullet. With what speed does the bullet leave the gun?

What velocity does the muon attain when it is accelerated from rest by a voltage of V = 149 MV? v = . . . .c? Use the muon's (rest) mass of 105.7 MeV/c ^2.

If an electron travels 0.200 m from an electron gun to a TV screen in 36.3 ns, what voltage was used to accelerate it? (Note that the voltage you obtain here is lower than actually used in TVs to avoid the necessity of relativistic corrections.)

In a television tube electrons are accelerated through a voltage of 5000 volts. What is the speed of the electrons assuming that they were initially at rest? (Since this is Physics 222, do not use special relativity to calculate the answer even though these speeds are a fraction of the speed of light.) Express your answer to the nearest km/s.

Imagine that we had two electrons that were initially VERY far apart, moving towardeach other at nearly the speed of light, roughly 3 x 108 m/s. How close can they get to each other?

This is particle phy

You pull your t-shirt out of the washing machine and note that 3500 particles have become attached, each of which could be either an electron or a proton. Your t-shirt has a net charge of − 17.5     10 - 18   C. How many electrons are attached to your t-shirt? Enter the number