Pedaling will generate an emf in the coil if a magnetic field is present, unless the magnetic field is in which of the following directions? (select all that apply.)
a. vertical horizontal
b. from one side of the bicycle to the other horizontal
c. from the front to the back of the bicycle

Estimate the schwarzschild radius (in kilometers) for a mini-black hole formed when a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (assume that the your weight is 50 kg)

Area around a charged object where the objects can exert a force on another charged objects is an electric

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.