How much energy can a 275 horsepower engine transform in 3 minutes?

If we relied solely on the nonrenewable resources found in the u. s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal

Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places

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