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heat given out =[(v^2)xt]/R
=(240 x240 x 20 x60 )/800
=86400j
joseph rimiru answered the question on October 28, 2017 at 09:35
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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State any one form of energy
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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Date posted: October 27, 2017. Answers (1)
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a. What are the bright specks?
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Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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The barometer in a city was found to be 70 cmHg. Given that the standard atmospheric pressure is 75 cmHg and the density of mercury is 13600kg/m^3, determine the altitude of the city. (density of air is 125kg/m^3)
Date posted: October 26, 2017. Answers (1)
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A certain hydraulic press, a force of 100N is applied to master piston of area 25cm^2. If it is designed to produce a force of 6000N, determine
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b. Radius of the slave piston.
Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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Date posted: October 26, 2017. Answers (1)
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A mercury barometer reads 75cm in a certain place. If one was to use an alcohol barometer, what would be the minimum length used to read the same pressure as the mercury barometer (take =10N/kg, mercury 13600kg/m^3, alcohol = 800kg/m^3)
Date posted: October 25, 2017. Answers (1)
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A passenger traveling by train found that the barometer height at sea level is 76 cm of mercury while at point on the highland is 70 cm of mercury. What is the altitude of the point? (take g as 10 N/kg, the density of mercury as 13600 kg/m^3 and density of air 1.25kg/m^3)
Date posted: October 25, 2017. Answers (1)