A solar cell has a light-gathering area of 10 cm2 and
A solar cell has a light-gathering area of 10 cm2 and produces 0.2 A at 0.8 V (DC) when illuminated with S = 1000 W/m2 sunlight. What is the efficiency of the solar cell?
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a hoop of mass m2 kg and radius r04 m rolls without slipping down a hill the lack of slipping means that when the
a machine does work at a rate given by pct2 where c 15ws2 and t is time find the work done by the machine between 15s
a particle of mass 0450 kg is attached to the 100-cm mark of a meter stick of mass 0125 kg the meter stick rotates on a
to decrease the body temperature of a 66-kg person by 10 c what mass of alcohol must be evaporated from the persons
a solar cell has a light-gathering area of 10 cm2 and produces 02 a at 08 v dc when illuminated with s 1000 wm2
for which of the following substances will the molar solubility in water be the same as that in an hcl or nh3 solution
two pucks a and b are on an air hockey table puck a is moving with an initial velocity of 55ms eastward and puck b is
a wheel is rotating about an axis that is in the z-direction the angular velocity is at increases linearly with time
two people one of mass 75 and the other of mass 65 sit in a rowboat of mass 89 with the boat initially at rest the
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