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Engineering

Student A pipettes 10 ml of water three times and gets the values, 10.11 ml, 10.04 ml and 9.97 ml. Student B repeats the experiment using the same pipette and delivers volumes of 9.45, 10.11 ml and 9.50 ml. If the actual volume delivered by the pipette is 10.00 ml, which student is the most accurate? Which student is most precise?

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Engineering

If a vehicle is equipped with radial tires, the tires should be mounted on which thing?

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Engineering

A dam 75 ft wide, with a nominal flow rate of 260 ft3/s, is to be studied with a scale model 3 ft wide, using Froude scaling as the most important similarity parameter. (a) What is the expected flow rate for the model? (b) What is the danger of only using Froude scaling for this test? Show what other dimensionless parameters could be relevant when scaling this problem. (c) Derive a formula for a force on the model as compared to a corresponding force on the prototype.

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Engineering

Use phasor techniques to determine the impedance seen by the source given that R = 4 Ω, C = 12 μF, L = 6 mH and ω = 2000 rad/sec. Then determine the current supplied by the source given that V = 12 <0o v. The equivalent impedance seen by the source is Z = ∠ o Ω. (Round the magnitude to three decimal places and the angle to two decimal places.) The current supplied by the source is I = ∠ o A. (Round the magnitude to three decimal places and the angle to two decimal places.)

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Engineering

How do you calculate the dynamic lift in an aeroplane?

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Engineering

For each of the cases below, determine if the heat engine satisfies the first law (energy equation) and if it violates the second law.

1. ˙QH=6 kW,˙QL=4 kW,˙W=2 kW

2. ˙QH=6 kW,˙QL=0 kW,˙W=6 kW

3. ˙QH=6 kW,˙QL=2 kW,˙W=5 kW

4. ˙QH=6 kW,˙QL=6 kW,˙W=0 kW

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Reagan Mcintosh

Engineering

Shear strain can be expressed in units of either degrees or radians. a) True b) - False

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Engineering

A roller support acts like a contact boundary condition as it can produce a reaction force as a push response to a body but will not produce a pull force to hold a body from moving away. a) True b) - False

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Kymani Bartlett

Engineering

Why is the study of technological history important?

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Engineering

How do you make a robotic dog

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Engineering

Write code to read a list of song names and durations from input. Input first receives a song name, then the duration of that song. Input example: Time 424 Money 383 quit.

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Engineering

An engineering student claims that a country road can be safely negotiated at 65 mi/h in rainy weather. Because of the winding nature of the road, one stretch of level pavement has a sight distance of only 510 ft. Assuming practical stopping distance, comment on the student

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Engineering

The numbers should be added to the merged array in an alternating pattern: first from list 1, then from list 2, then list 1 again, etc. If a number in one of the arrays already appears in the merged array, then it should be ignored, and the program should alternate to the other list again. For example, if the first list begins 1 2 3 10, and the second begins 3 4 5 8, then the merged list would begin 1 3 2 4 5 10 8.

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Engineering

What are the factors of production in business? Land, labor, and capital land, capital, and interest land, labor, and customer base capital, customer base, and interest

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Engineering

Fresh cut potato strips with a moisture content of 50% (w/w) on wet basis are fried in peanut oil to produce French fries.

Calculate the percentage of oil uptaken by fries during the frying process if 1000 kg of cut potato strips produce 700 kg of french fries with a moisture content of 23% on wet basis when fresh potatoes have oil content of 0%.

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