Physics, 26.03.2021 22:30 freedygotmoney
A lemon has a positive electrical charge of 4.2 x 10-6 Coulombs is placed 0.12 m away from a red potato that has a negative electrical charge of -3.9 x 10-6 What is the electrical force between the two?
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Aperson walking 1 mile everyday for exercise, leaving her front porch at 9: 00 am and returning to her front porch at 9: 25 am. what is the total displacement of her daily walk? a) 1 mileb) 0c) 25 minutes d) none of the above
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Which describes increasing the efficiency of energy resource
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Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*
Answers: 1
A lemon has a positive electrical charge of 4.2 x 10-6 Coulombs is placed 0.12 m away from a red pot...
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