Easy 8 points
how does a fuse protect a toaster?

a. when the current is too high, a metal strip in the fuse melts and opens the circuit.
b. when the current is too high, a resettable switch opens the circuit.
c. when the resistance is too high, a resettable switch opens the circuit.
d. when the resistance is too high, a metal strip in the fuse melts and opens the circuit.

Distinguish between linear momentum and angular momentum

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.