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3 years ago

Question 2

Engineering

1 answer:

kotegsom [21]3 years ago

3 0

Answer:

poisson's ratio

Explanation:

when a tenstile stress or comperresiv stress is applied ti a cylindrical or rod there is simultaneously axial and lateral strain within the elastic range . The ratio of lateral to the axial strain is called poisson's ratio . It has no unit , as it is the ratio of two strains

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Rivers account for _____% of the earth's fresh water.<br> ?

Black_prince [1.1K]

Answer:

0.49%

Explanation:

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Select the correct answer. Which physical quantity measures the rate at which an objectâ€™s velocity changes?

ZanzabumX [31]

Answer:

I think answer is Force.

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3 years ago

A piston–cylinder device contains 15 kg of saturated refrigerant-134a vapor at 280kPa. A resistance heater inside the cylinder w

attashe74 [19]

Answer:

18.77 A

Explanation:

To solve this we use the energy balance equation, that is:

$E_{in}-E_{out}=\Delta E_{sys}\\\\Q_{in}+W_{in}+W_{out}=\Delta U\\\\Q_{in}+W_{in}=\Delta U\\\\But\ W_{in}=Voltage(V)*Current(I)*change\ in\ time(\Delta t)=VI\Delta t,\Delta U=m(h_2-h_1)\\\\Given\ that\ m=15kg,V=110\ V,\Delta t=6\ min = (6*60\ s)=360\ s,Q_{in}=20.67\ kJ/kg*15\ kg=310.05\ kJ=310050\ J\\\\From\ table: At\ P_1=280kPa, h_1=249.71\ kJ/kg=249710\ J/kg;At\ P_2=280kPa \ and\ T_1=75^oC,P_2=319.95\ kJ/kg=319950\ J/kg\\\\Substituting:\\\\310500+(110*360*I)=15(319950-249710)\\\\$

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3 years ago

True or False? A constricting nozzle is used

marissa [1.9K]

Answer:

True

Explanation:

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in plasma arc cutting When shielding gas is also used, the process is called dual flow plasma arc cutting. I hope this helps.

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4 years ago

Which allows a user to run applications on a computing device? Group of answer choices Application software CSS Operating system

sveticcg [70]

Answer:

The operating system

Explanation:

The job of the operating system is to manage system resources allowing the abstraction of the hardware, providing a simple user interface for the user. The operating system is also responsible for handling application's access to system resources.

For this purpose, the operating system allows a user to run applications on their computing device.

Cheers.

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3 years ago