Describe the interaction responsible for providing a centripetal acceleration for 

\((a)\) a car rounding a level curve, 

\((b)\) a car rounding a banked curve, 

\((c)\) a coin rotating on a turntable,

(d) a ball swung through a horizontal circle by a string that sweeps out a cone,

(e) the Moon orbiting Earth, 

\((f)\) clothes spinning in a dryer, 

\((g)\) a marble rolling along the inside of a horizontal hoop, and 

\((h)\) a ball on a string rolling in a horizontal circle on a surface.