Problems are listed in approximate order of difficulty. A single dot (•) indicates straightforward problems involving just one main concept and sometimes requiring no more than substitution of numbers in the appropriate formula. Two dots (••) identify problems that are slightly more challenging and usually involve more than one concept. Three dots (•••) indicate problems that are distinctly more challenging, either because they are intrinsically difficult or involve lengthy calculations. Needless to say, these distinctions are hard to draw and are only approximate.
• Estimate the energy output of a solar cell on a sunny day. When the sun is overhead, the power incident on each square meter of the ground is about 1000 W. Assuming a solar-cell efficiency of 15%, estimate the daily energy output of a solar panel with an area of 10 square meters. Give the answer in joules and in kilowatt-hours.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.