Engineering » Page 55

Engineering

Nikolas Kirk

Choose the options below that are true for the entropy of a substance. Select all that apply: Heavier atoms possess greater entropy at a given temperature than lighter atoms. The weight of an atom has no effect on entropy. Molecules with greater numbers of atoms are associated with lower entropy. The entropy of a substance is influenced by the structure of the particles that comprise the substance.

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Engineering

Virginia Nolan

A 60-kg woman holds a 9-kg package as she stands within an elevator which briefly accelerates upward at a rate of g/4. Determine the force R which the elevator floor exerts on her feet and the lifting force L which she exerts on the package during the acceleration in-travel. If the elevator supports cables suddenly and completely fail, what values would R and L acquire

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Engineering

Iris Copeland

Water circulates throughout a house in a hot water heating system. If the water is pumped at a speed of 0.50m/s through a 4.0-cm diameter pipe in the basement under a pressure of 3.03x10^5 Pa, what will be the velocity and pressure in a 2.6-cm diameter pipe on the second floor 5.0m above?

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Engineering

Doctor

Welding never causes residual stresses in the work piece, which may result in distortion stress corrosion cracking, and reduced fatigue life. (True / False)

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Engineering

Halle Dillon

Which of the following is least likely to affect the convection heat transfer coefficient? a) - Thermal conductivity of the fluid b) - Geometry of the solid body c) - The roughness of the solid surface d) - Type of fluid motion (laminar or turbulent) e) - Fluid velocity f) - Density of the solid body g) - Dynamic viscosity of the fluid

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Engineering

Dominguez

What are the similarities and differences between the closed-loop processes of BPM and the processes in the OODA decision cycle?

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Engineering

Alaina Bradley

In today's engineering environment "scales" (the triangular plastic or wood instruments) are rarely used. However setting proper units of measurement and plotting to scale has not changed since computer aided drafting has come on the scene. List examples of how to set units and dimension variables for imperial and metric drawings, precision, text height, arrow sizes, etc.

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Engineering

Lena Nichols

The volume of the riser must always be greater than the volume of the casting in order to avoid premature solidification of the riser: True or False

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Engineering

Mariam Stewart

List fabrication methods of composite Materials.

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Engineering

Melody Aguirre

If you're using the Chrome browser and a jа vascript application stops running due to an error in the jа vascript code, you can identify the statement that caused the error by

a. pressing F12, clicking on the link in the Sources panel, and reviewing the code in the Console panel

b. pressing F12, clicking on the link in the Console panel, and reviewing the code in the Sources panel

c. pressing F12 and reviewing the code in Console panel

d. pressing F12 and reviewing the code in the Sources panel

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Engineering

Shyann Mcknight

Two resistors of values 7.0 and 15.0 Ω are connected in parallel. This combination in turn is hooked in series with a 3.8 - Ω resistor and a 22.3-V battery. What is the current in the 3.8 - Ω resistor?

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Engineering

Brenda Shepherd

What do you think about changing the formula for happiness and success?

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Engineering

Fuentes

A vehicle has a weight of 5,000 and a rear static weight on wheels of 2,542, both measured in lbf. Of the wheelbase is 93 inches and the vertical center of gravity is 50 inches, calculate the number of "gs" of acceleration the vehicle must experience in order for the front wheels to lift off the ground.

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Engineering

Kathleen Welch

Energy is not conserved because it can be transferred in term of work and heat. a) - True b) - False

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Engineering

Cornelius Wilkinson

Integrate

∫cos²x sinx dx

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