6. Sound travels faster through solids than it does through either liquids or gases. A student could verify this statement by measuring the
A. Distance that sound travels through a solid, a liquid, and a gas.
B. Pitch of sound when it passes through a solid, a liquid, and a gas.
C. Time required for sound to travel a set distance through a solid, a liquid, and a gas.
D. Distance sound travels through a solid, a liquid, and a gas at varying temperatures.

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600