Engineering » Page 124

Engineering

Which of the following accounts will give you the LEAST access to your money?

Simple

savings

account

Certificate of

Deposit (CD)

Checking

account

Cash

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Engineering

Government actions can have positive or negative effects on business. true or false

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Engineering

Why can crashes be considered two separate collisions?

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Engineering

The different forms of a gene for a given trait are called what

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Tristian Stanley

Engineering

A room contains 50 kg of dry air and 06 kg of water vapor at 25°C and 95 kPa total pressure. The saturation p ressure of water at 25 "C is 3.1698 kPa. The molar masses for air and water are 29 kg/kmol and 18 kg/kmol, respectively Determine (a) The specific humidity of air in the room; (b) The relative humidity of air in the room.

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Jayleen Frazier

Engineering

A dipstick is (a direct, an indirect) measurement device

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Engineering

Electrical circuits must be locked-out/tagged-out before electricians work on any equipment. Is this true or false?

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Engineering

A house has well-insulated walls. It contains a volume of 135 m3 of air at 275 K. (a) Consider heating it at constant pressure. Calculate the energy required to increase the temperature of this diatomic ideal gas by 1.8°C. kJ (b) If this energy could be used to lift an object of mass m through a height of 2.4 m, what is the value of m? If this energy could be used to lift an object of mass m through a height of 2.4 m, what is the value of m? kIf this energy could be used to lift an object of mass m through a height of 2.4 m, what is the value of m? kg

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Engineering

In a bicycle race, a bicyclist coasts down a hill with a 7 % grade to save energy. The mass of the bicycle and rider is 80 kg, the projected area is 0.2 m2, and the drag coefficient is 0.9. Air temperature is 17 ºC. Neglecting rolling friction and bearing friction, determine the maximum speed of the bike if there is a head wind of 15 km/h.

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Engineering

A household refrigerator with a COP of 1.2 removes heat from the refrigerated space at a rate of 60kJ/min. Determine: (a) The electric power consumed by the refrigerator, and (b) The rate of heat transfer to the kitchen air.

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Engineering

The vertical and horizontal poles at the traffic-light assembly are erected first. Determine the additional force and moment reactions at the base O caused by the addition of the three 86-lb traffic signals B, C, and D. Report your answers as a force magnitude and a moment magnitude.

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Engineering

Let suppose, you are going to develop a web-application for school management system. Then what architectural pattern will you use and why? (Justify your answer with details)

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Engineering

The aerodynamic behavior of a flying insect is to be investigated in a wind tunnel using a ten-times scale model. It is known that the insect's velocity depends on its size (characteristic length L), wing flapping frequency ω, surrounding fluid's density rho and viscosity μ. If the insect flaps its wings 50 times a second when flying at 1.25 m/s, determine the wind tunnel air speed and wing oscillation frequency required for dynamic similarit

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Engineering

Work-producing devices that operate on reversible processes deliver the most work, and work-consuming devices that operate on reversible processes consume the least work. a) - True b) - False

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Engineering

Technician A says that as wheelbase becomes shorter in a highway truck, its resistance to yaw is

reduced. Technician B says that an ABS add-on called directional stability control uses the brake

system to avoid tracking yaw. Who is correct?

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