Your body is presently converting chemical potential energy from food into thermal energy at a rate of about 100 J/s, or 100 W. If heat were flowing out of you at a rate of about 200 W, would your body temperature go up or down?

decrease

Explanation:

Rate of production of heat = 100 J/s

Rate of heat flowing out = 200 J/s

As the rate of flowing heat is more than the rate of generating heat so the temperature of body will decrease.

- measure reactants precisely. ( first choice)

- stir to the reaction take place. ( second choice)

- wait patiently until the reaction completes. ( fourth choice)

- make sure to recover as much copper as possible. ( last choice)

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true