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Engineering

James Barry

20 gallons of an incompressible liquid exert a force of 50 lbf at the earth's surface. What force in lbf would 3 gallons of this liquid exert on the surface of the moon? The gravitational acceleration on the surface of the moon is 5.51 ft/s^2.

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Engineering

Sophie Chapman

How is every one doing with coronavirus on the loose

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Engineering

Alijah Savage

The fouling on the heat exchanger surfaces causes additional thermal resistance, thus decreases the heat transfer rate. a) - True b) - False

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Engineering

Jaeden Solis

When in a flow do the streamlines, streak lines and timelines coincide?

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Engineering

Krish Andrade

What three actions consume traction? Why is it wise to never exceed traction capability?

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Engineering

Riley Webster

A hot water stream at 80 C enters a mixing chamber with a mass flow rate of 0.5 kg/s where it is mixed with a stream of cold water at 20 C. If it is desired that the mixture leae the chamber at 42 C, determine the mass flow rate of the cold-water stream. Assume all the streams are at pressure of 250 kPa. Answer : 0.865 kg/s

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Engineering

Adrienne

You are reassembling a gearbox. The output

shaft on the gearbox connects to a machine.

The gearbox converts the motor's RPM and

torque to the level needed by the machine. The

motor tums to the left. The shaft needs to tum

to the right

FOR

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Engineering

Bauer

11. A heat engine operates between two reservoirs at 800 and 20°C. One-half of the work output of the heat engine is used to drive a Carnot heat pump that removes heat from the cold surroundings at 2°C and transfers it to a house maintained at 22°C. If the house is losing heat at a rate of 62,000 kJ/h, determine the minimum rate of the heat supply to the heat engine required to keep the house at 22°C.

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Engineering

Marquise Green

You are the manager of a firm that produces a product according to the cost function C (qi) = 160 + 58qi - 6qi2 + qi3. Determine the short-run supply function if:

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Engineering

Rogelio Ho

When your employer performs an assessment of the area, what are they trying to find?

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Engineering

Hannah Chambers

A classroom that normally contains 40 people is to be air-conditioned with window airconditioning units of 5-kW cooling capacity. A person at rest may be assumed to dissipate heat at a rate of about 360 kJ/h. There are 11 lightbulbs in the room, each with a rating of 100 W. The rate of heat transfer to the classroom through the walls and the windows is estimated to be 15,000 kJ/h. If the room air is to be maintained at a constant temperature of 21∘C, determine the number of window air-conditioning units required.

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Engineering

Rylan Levine

Determine the number of load/store instructions required for each variable in each case. Assume the compiler checks for liveness across function calls but does not make any other optimizations.

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Engineering

Abbigail Brock

Penalties for your first DUI conviction include

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Engineering

Kennedy Freeman

A square steel bar has a length of 8.4 ft and a 2.1 in by 2.1 in cross section and is subjected to axial tension. The final length is 8.40392 ft. The final side length is 2.09967 in. What is Poisson's ratio for the material

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Engineering

Jagger Ford

The sticker inside the door of my car says that the tire pressure should be 32 psig (322 kPa) when the tire is cold. Before a road trip, I fill the tire to this pressure on a cold morning when the temperature is 15 °C, and then head out towards Las Vegas. When I make a rest stop in Barstow, it is now quite warm out, and the air in my tires has also warmed up from friction during the long drive. So, the air in the tires is now 60 °C. Assuming my tires don't leak or expand (volume is constant), what is the expected tire pressure at this rest stop?

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