Physics, 17.12.2019 23:31, jrstrom9090
Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance that is large compared with their diameters. the magnitude of the electrostatic force acting on sphere 2 due to sphere 1 is f = 0.42 n. suppose now that a third identical sphere 3, having an insulating handle and initially neutral, is touched first to sphere , then to sphere 2, and finally removed. what is the magnitude of the electrostatic force f' that now acts on sphere 2?
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Physics, 22.06.2019 16:20, nessuhbae6722
What is the single most important equation in all of physics?
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Physics, 23.06.2019 08:00, edjiejwi
Athin electrical heater is inserted between a long circular rod and a concentric tube with inner and outer radii of 20 and 40 mm. the rod (a) has a thermal conductivity of ka = 0.15 w/(m*k), while the tube (b) has a thermal conductivity of kb = 0.8 w/(m*k) and its outer surface is subjected to convection with a fluid of temperature t= -15°c and heat transfer coefficient 60 w/(m2 *k). the thermal contact resistance between the cylinder surfaces and the heater is negligible. (a) determine the electrical power per unit length of the cylinders (w/m) that is required to maintain the outer surface of cylinder b at 15°c. (b) what is the temperature at the center of cylinder a?
Answers: 2
Physics, 23.06.2019 10:00, YoVeoAnime
No receiver is named? transitive passive or intrasitive complete
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Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance tha...
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