Which of the following best describes the use of a renewable resource? (2 points) most power plants burn fossil fuels to generate electricity for use in homes, offices, and other buildings. there are areas in california that use the heat from deep in the earth to generate electricity. propane is a product you might use to barbeque; it comes from natural gas and processing oil. we use gasoline to power our cars to get to work and school each day.

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?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Aphysical change is a change in the size, shape,, or stafe of matter true or false