A coal-fired electrical generating plant has an efficiency of 38%. The temperature of the steam leaving the boiler is 550 °C. What percentage of the maximum possible efficiency does this plant obtain? (Assume the temperature of the environment is 20 °C)
December 4, 2012
A 124- balloon carrying a 22- basket is descending with a constant downward velocity of 27.4 A 1.0- stone is thrown from the basket with an initial velocity of 20.0 perpendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. The...
April 1, 2012