A block of mass 5kg on a plane that is inclined at 30° to the horizontal, calculate the components of the block's weight

Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine