Answer:
24.72 kwh
Explanation:
Electric energy=potential energy=mgz where m is mass, g is acceleration due to gravity and z is the elevation.
Substituting the given values while taking g as 9.81 and dividing by 3600 to convert to per hour we obtain
PE=(108*9.81*84)/3600=24.72 kWh
A torque wrench tool is a tool that ensures that a fastener has the proper amount of tightness.
<h3>What is the torque wrench used for?</h3>
The torque wrench tool is used to ensure screws and bolts are properly tightened. When performing home repairs and maintenance of equipment it is quite important that a torque wrench is used in other to prevent a scenario where a fastener (screws and bolts) does not become loose leading to equipment failure or damage. Because of its many advantages, this tool is often found in the possession of construction workers.
You can learn more about the benefits of a torque wrench tool here
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Answer:
The options a)- A blast furnace is used and d)-Coke is used to produce the heat are FALSE.
Explanation:
Aluminium is a chemical element and the most abundant metal present in the Earth's crust. An aluminium ore is called bauxite. Aluminium is extracted from its ore by the process of electrolysis, called the Hall–Héroult process. The extraction of aluminium is an expensive process as it requires large amount of electricity. The bauxite is purified to produce aluminium oxide. Then, aluminium is extracted from the aluminium oxide.
<u>Therefore, the refining of aluminum from its ore does not involve the use of a blast furnace and coke to produce heat.</u>
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Answer:
b)False
Explanation:
Those material have high thermal it is very difficult to weld because due to high thermal conductivity it transmit the heat in to the surrounding and can not reach a particular temperature required to melt the material.And when material does not melt then there is no possibility to weld the material.
So from above we can say that it is very difficult to weld the copper material due to high thermal conductivity.Generally welding of copper done by usiong gas welding technique.
So our option b is right.
Wooden 2 X 8's, 10's, or 12's that run parallel to one another and support a floor or ceiling, and supported in turn by larger beams, girders, or bearing walls- <u>Joist</u>
Explanation:
- Wooden 2 X 8's, 10's, or 12's that run parallel to one another and support a floor or ceiling, and supported in turn by larger beams, girders, or bearing walls- <u>Joist</u>
- A point where a bearing/structural weight is concentrated and transferred to the foundation-<u>Point Load</u>
- Includes all exterior walls and any interior wall that is aligned above a support beam or girder-<u>Load Bearing Wall</u>
- Plywood substitute made of coarse sawdust that is mixed with resin and pressed into sheets-<u>Particleboard</u>
- The replacement of excavated earth into a trench around or against a basement/crawl space foundation wall- <u>Backfill</u>
- Continuous 8m" or 10" thick concrete pad installed before and supports the foundation wall or monopost-<u>Footing</u>
- Ribbed steel bars installed in foundation concrete walls, footers and poured in place concrete structures designed to strengthen concrete-<u>Rebar</u>
- The end, upper, triangular area of a home, beneath the roof-<u>Gable</u>
- A manufactured 4X8 wood panel made out of 1-2 wood chips and glue. Often used as a substitute for plywood-<u>OSB</u>
- The incline slope of a roof or the ratio of the total width of a house-<u>Pitch</u>
- A manufactured structual wood beam. It is constructed of pressure and adhesive wood strands of wood-<u>Microlam</u>
