Engineering » Page 43

Engineering

Malik Middleton

When Ontario

hydro workers set

up electrical

cables during the

summer, they

allow the cables

to sag. Suggest a

reason for this. In your answer,

refer to the particle theory.

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Engineering

Topaz

Based on experimental observations, the acceleration of a particle is defined by the relationa = - (0.1 + sin (x/b)), where a and x are expressed in m/s^2 and meters, respectively. Knowing that b = 0.8 m and that v = 1 m/s when x = 0, determine (a) the velocity of the particle when x = - 1 m, (b) the position where the velocity is maximum, (c) the maximum velocity.

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Engineering

Journey Blanchard

To increase the expected fatigue service life of a component, we can take the following measures besides the choice of a stronger material: (a) Improving the surface finish; (b) Decreasing stress concentration; (c) the structure shape; (d) All of the above

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Engineering

Martha Murphy

Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft * 48 ft * 6 in. The aggregate in the stockpile contains 3.1% moisture. If the required compaction is 95% of the target, how many tons of aggregate will be needed?

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Engineering

Ruben Pineda

jа vascript Write a function named sumNumbers that accepts a nonnegative number, adds up all of the numbers between 0 and the number (inclusive), and returns the sum.

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Engineering

Dallas Webb

Give a reason why fighter aircraft use mid-wing design.

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Engineering

Cody Rodriguez

A worker can file acomplain about safety and hazardaus

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Engineering

Hayden Kramer

Why was the lack of preparedness of the Federal Emergency Management Agency in the Hurricane Katrina disaster so damaging for the George W. Bush administration? a. President Bush had vociferously denied that hurricanes of this size could ever reach the United States. b. The Bush administration had prided itself on its unique focus for homeland security. c. There was nothing unusual about this particular hurricane, but the city and state had not done anything to prepare the city's population. d. As a native of Louisiana, he was expected to display particular care for New Orleans. e. President Bush had been the head of FEMA during his father's presidency.

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Engineering

Madalynn

Many radios can be operated either by plugging them into the wall or by using batteries. How can a radio use either source of current?

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Engineering

Tess Shaffer

weight of 1000 pounds is suspended from two cables. The allowable stress in the cables is 1500 psi. Find the minimum diameter for each cable.

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Engineering

Alisa Joyce

Ashworth Lesson 2: Careers for mechanics and technicians exam

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Engineering

Braylon Ayers

A hydraulic cylinder has a 125-mm diameter piston with hydraulic fluid inside the cylinder and an ambient pressure of 1 bar. Assuming standard gravity, find the piston mass that will create a pressure inside of 2500 kPa.

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Engineering

Cassandra Ortiz

Practice Problem: True Stress and Strain A cylindrical specimen of a metal alloy 49.9 mm long and 9.72 mm in diameter is stressed in tension. A true stress of 376 MPa causes the specimen to plastically elongate to a length of 53.5 mm. If it is known that the strain-hardening exponent for this alloy is 0.1, calculate the true stress (in MPa) necessary to plastically elongate a specimen of this same material from a length of 49.9 mm to a length of 58.2 mm.

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Engineering

Kody

What are the controlling LRFD load combinations for dead and floor live load?

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Engineering

Ty

The speed of ac motors is primarily

determined by which two factors?

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