Calculate the efficiency of a fossil fuel power plant that is run by the heat supplied by coal at the rate of 2367 MW to produce useful work at the rate of 855 MW.

What is the angular momentum of the bar about the axle?

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Which type of energy is transferred by convection currents?