Physics, 29.06.2019 13:20 priscillaan
Consider flow of a very low pr number fluid (say pr = 0.005) on a heated flat plate. the plate temperature is kept constant at ts. the freestream velocity is uinf and freestream temperature is tinf. starting with the 2d steady state energy equation, simplify it for this low pr flow with clear justification for the simplifications. perform an order of magnitude analysis on the energy equation to develop an expression for local nu for this type of flow.
Answers: 1
Physics, 22.06.2019 10:30, laura52677
Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?
Answers: 1
Physics, 22.06.2019 12:30, lmolder1329
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Physics, 22.06.2019 17:00, davinedmcneal
If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.
Answers: 1
Consider flow of a very low pr number fluid (say pr = 0.005) on a heated flat plate. the plate tempe...
Mathematics, 19.06.2020 03:57
Geography, 19.06.2020 03:57
Mathematics, 19.06.2020 03:57
Mathematics, 19.06.2020 03:57