Abody that has relatively few free electrons and offers comparatively great resistance to the movement of free electrons is a/an
a. conductor.
b. capacitor.
c. coulomb.
d. insulator.

Olympic skier tina maze skis down a steep slope that descends at an angle of 30∘ below the horizontal. the coefficient of sliding friction between her skis and the snow is 0.10. i found maze's acceleration which is 4.1 m/s^2. but how do you determine maze's speed 4.0 s after starting?