1 Select the correct answer.
Why do electrons flow through a wire?
ОА.
There is a difference in the chemical energy
OB.
There is a difference in the potential energy
ОС.
There is a difference in the gravitational force.
OD.
There is a difference in the kinetic energy.
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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%)

Which statement correctly describes the relationship between frequency and wavelength?

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles