To travel at a constant speed of 16.6 meters per second on a level road for 2.81 hours, a car must exert a constant force of 343 newtons to overcome air resistance. how much charge in coulombs must the 10.9 battery move in order to maintain this force? remember that power = energy / time and power = force x velocity. one hour = 3600 seconds.

What is the frequency of a light wave with a wavelength of 620nm

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)