How do a neutron and a proton compare?
o a. the neutron has much less mass.
o
b. the neutron is farther from the nucleus.
o
c. they are equal in number in a neutral atom.
d. the proton has a positive charge, while the neutron has no charge.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.