Estimate the dimensions of your own arm and draw a lever model for the extension of the elbow by the triceps. calculate the force of the triceps in a one arm push-up in a hold position at an elbow angle of 100 degrees.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

What causes the development of most clouds and precipitation in the atmosphere?