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Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.