Microwave ovens have become popular in kitchens everywhere. they are also used in the laboratory, particularly in drying samples for chemical analysis. a typical microwave oven uses radiation with a 12.2 cm wavelength. a.how many moles of photons of this radiation are required to raise the temperature of 345 g of water from 26.5 ºc to 99.8 ºc? b. the watt is a unit of power—the rate at which energy is delivered or consumed: 1 w = 1 j/s. assume that all the energy of a 700. w microwave oven is delivered to the heating of water described in (a). how long will it take to heat the water?
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Physics, 21.06.2019 19:30, ctuek5990
The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.
Answers: 3
Physics, 21.06.2019 21:50, mckinley2006
What is the length x of the side of the triangle below? (hint: use the cosine function)
Answers: 1
Microwave ovens have become popular in kitchens everywhere. they are also used in the laboratory, pa...
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