A proton moving perpendicular to a magnetic field of strength 3.7 mT experiences a force due to the field of 5.8 ✕ 10-21 N. (a) Calculate the speed of the proton. (b) Calculate the kinetic energy of the proton.

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.