The student creates a symmetric wave pulse traveling to the right on the same string. The amplitude of the second pulse is half the amplitude of the original pulse. Which pulse, if either, travels at a higher speed?

a. The higher amplitude pulse.
b. The lower amplitude pulse.
c. Neither, both pulses travel at he sane speed.

Briefly explain your answer.

To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the conductor. a conductor is placed in an external electrostatic field. the external field is uniform before the conductor is placed within it. the conductor is completely isolated from any source of current or charge. part a: which of the following describes the electric field inside this conductor? it is in the same direction as the original external field.it is in the opposite direction from that of the original external field.it has a direction determined entirely by the charge on its surface.it is always zero. part b: the charge density inside the conductor is: 0non-zero; but uniformnon-zero; non-uniforminfinite part c: assume that at some point just outside the surface of the conductor, the electric field has magnitude e and is directed toward the surface of the conductor. what is the charge density η on the surface of the conductor at that point? express your answer in terms of e and ϵ0

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

Does current flow through or across a resistor?