How does the total heat energy radiated by Jupiter compare to the amount of energy it receives from the Sun?

Which of the following best describes the total mechanical energy $E$ of a planet of mass $m$ in a stable circular orbit of radius $r$ around a star of mass $M$?

Tidal barrage dams are used to produce hydroelectric power. At which points during the tidal cycle is energy generated?

If a microhydro dam generates $1\mathrm{MW}$ of power continuously, how much energy in $\mathrm{kWh}$ does it produce in one day?

Which form of energy made it possible to operate machines anytime and anyplace, revolutionizing the use of mechanical devices in the context of circular orbits and beyond?

Golf drives travel much farther than major league home runs. Why might this be?

The Sun is expected to undergo hydrogen fusion for a total of how many years?

When an automobile is braked to a stop, its $KE$ is transformed primarily into which form of energy?