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Engineering

Arjun Woodard

At steady state, a refrigeration cycle operating between hot and cold reservoirs at 300 K and 275 K, respectively, removes energy by heat transfer from the cold reservoir at a rate of 600 kW. (a) If the cycle's coefficient of performance is 4, determine the power input required, in kW. (b) Determine the minimum theoretical power required, in kW, for any such cycle.

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Engineering

Zion Alexander

Which of the following is not an oxidizer? a) - H2O2 b) - CH c) - N2O4 d) - LO2

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Engineering

Wags

A cylindrical bar of metal having a diameter of 19.7 mm and a length of 206 mm is deformed elastically in tension with a force of 47500 N. Given that the elastic modulus and Poisson's ratio of the metal are 65.1 GPa and 0.35, respectively, determine the following: (a) The amount by which this specimen will elongate in the direction of the applied stress. (b) The change in diameter of the specimen. Indicate an increase in diameter with a positive number and a decrease with a negative number.

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Engineering

Deven Sparks

Adjust the formatting of the word Blooming so the font is Arial Black and the font size 72 pts.

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Engineering

Abby Collier

In vibration analysis, can damping always be disregarded?

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Engineering

Azaria Hampton

Are there other methods of design?

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Engineering

Marvin Randall

Which fossil fuel became a primary fuel during the Industrial Revolution?

A) Coal

B) Natural Gas

C) Oil

D) Wood

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Engineering

Ashly Howell

A projectile is launched horizontally 1m above the ground. If it lands 300m away from the initial launch position, find: a) - the initial launch velocity, u, and b) - the angle 0, at which the projectile contacts the ground.

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Engineering

Deborah Choi

What is the main purpose of the alternator?

to regulate the speed of the car

to keep the engine cool

to maintain constant oil pressure

to power the car's electrical system

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Engineering

Elaina Romero

It is true about polymers: a) - They are light-weight materials b) - There are three general classes: thermosets, thermoplastics and thermoset c) - They present long term instability under load d) - All the above

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Engineering

Kendall Cook

Use Newton's method to determine the angle θ, between 0 and π/2 accurate to six decimal places. for which sin (θ) = 0.1. Show your work until you start computing x1, etc. Then just write down what your calculator gives you.

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Engineering

Escobar

The federal highway administration reports nearly

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Engineering

Allyson Buck

An architect-engineering firm is planning a parking lot to accommodate 500 vehicles. Each parking space will be 8 feet times 13.5 feet. It has been estimated that the space required for aisles will be 85 % of the space required for parking. A local paving company charges $13 per square foot for paving and a flat fee of $10 comma 200 for marking and painting the individual parking spaces. Based on this information, what is the estimated cost of paving and marking this parking lot?

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Engineering

Terry Wright

A soil element is subjected to a minor principle stress of 50 kPa on a plane rotated 20 ° counterclockwise from vertical. If the deviator stress is 120 kPa and the shear strength parameters are a friction angle of 30° and a cohesion of 5 kPa, determine the magnitude of the stresses on the failure plane and the orientation of this plane with respect to the major principle stress plane.

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Engineering

Babykins

Now, after all of the ice melts, the sun shines for a while and the water column experiences heating at the surface. Would surface heating increase or decrease the stability of the water column? Explain.

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