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The small sliders A and B are connected by the rigid slender rod. If the velocity of slider B is 2 m/s to the right and is constant over a certain interval of time, determine the speed of slider A when the system is in the position shown.
A 1.0 × 106 gallon reactor is used in a sewage-treatment plant. The influent biochemical oxygen demand (BOD) concentration is 100 mg/L, the effluent BOD concentration is 25 mg/L, and the flow rate through the reactor is 500 gal/min.
A small nitrogen container is at Pressure P1 = 5 bar and T1 = 300 K. It's been filled from a larger nitrogen container, which is P= 10 bar and T = 300 K.
A laboratory space has a heat gain of 3 tons with a sensible heatfactor of 0.7. The indoor design conditions are 78 F at 40% RH. Theoutdoor air design conditions are 95 F at 50% RH. The coolingequipment has a fixed air flow rate of 350 cfm/ton of coo..
A 0.4 kg mass m is rotating on a horizontal, frictionless surface, its motion constrained by a massless, inextensible string. The distance from the string's attachment point
If the ultimate BOD of the mixed river water is 30mg/L, the rate constant for BOD at 20ºC is 0.6d-1, the reaeration rate constant at 20ºC is 0.8d-1, and the removal of BOD by sedimentation can be neglected
consider a spacecraft that is positioned directly between the earth and moon.the mass of the moon's is approximately 7.35 X10^22 kg, and at the instant under consideration, the moon is 3.8 X 10^8 km from earth.
FOR WHAT REASON WOULD YOU NEED TO USE DARCY'S LAW IN THE FOELD RATHER THAN IN THE LABORATORY
calculate and plot the exit pressure, the exit velocity, and the mass flow rate versus the back pressure Pb for 0.9 ≥ Pb ≥ 0.1 MPa.
If the detention storage on the paved section is increasing at the rate of 60 m3/hr, what is the runoff rate into the inlet grate?
Compare your results to the tabulated hfg value.
A gas is compressed at a constant pressure of 0.800 atm from 9.00L tp 2.00L. in the process, 400J of energy leave the gas by heat. (a) What is the work done on the gas? (b) What is the change in it internal energy?
Pinion gear A rolls on the fixed gear rack B with an angular velocity = 8 rad/s. Determine the velocity of the gear rack c . Assume the direction to the right as positive.
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