A nuclear power plant operates at 75 percent of its maximum theoretical (Carnot) efficiency between temperatures of 700° and 310°C. If the plant produces electric energy at the rate of 1.3 GW, how much exhaust heat is discharged per hour?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light