Physics, 17.09.2019 20:00 angel234wilcox
Steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energy is u1=2709.9 kj/kg, to state 2, where u2=2659.6 kj/kg. during the process there is heat transfer to the steam with a magnitude of 80 kj. also, a paddle wheel transfer energy to the steam by work in the amount of 18.5 kj. there is no significant change in the kinetic or potential energy of the steam. determine the energy transfer by work from the steam to the piston during the process, in kj. the mass of steam is 5kg.
Answers: 3
Physics, 21.06.2019 19:30
Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s
Answers: 1
Physics, 22.06.2019 06:40
Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm
Answers: 1
Physics, 23.06.2019 02:30
Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?
Answers: 3
Steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the spe...
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