Physics, 08.07.2019 17:30, cassandraaa
Along 35-cm-diameter cylindrical shaft made of stain-less steel 304 (k = 14.9 w/m·°c, ρ = 7900 kg/m3, cp = 477 j/kg·°c, and α = 3.95x10-6 m2/s) comes out of an oven at a uniform temperature of 400°c. the shaft is then allowed to cool slowly in a chamber at 150°c with an average convection heat transfer coefficient of h = 60 w/m2 · °c. determine the temperature at the center of the shaft 20 min after the start of the cooling process. also, determine the heat transfer per unit length of the shaft during this time period.
Answers: 2
Physics, 22.06.2019 14:30, Paigex3
In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.
Answers: 1
Physics, 22.06.2019 23:20, pr47723
Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above
Answers: 2
Along 35-cm-diameter cylindrical shaft made of stain-less steel 304 (k = 14.9 w/m·°c, ρ = 7900 kg/m3...
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