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Degger [83]
3 years ago
11

Why are special techniques and extinguishing agents are required to fight combustible metals fires?

Physics
1 answer:
d1i1m1o1n [39]3 years ago
7 0
Cucucicicicivigovogovphphpbpb
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When a 12 N horizontal force is applied to a box on a horizontal tabletop, the box remains at rest. The force of friction acting
Mrrafil [7]

Answer:

12N

Explanation:

when a force is applied to a body but still stays at rest or moves at a constant speed , the frictional force is equal to the force applied

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2 years ago
Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (i
Bezzdna [24]

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2.25in³

Explanation:

For a 12 awg conductor the minimum volume allowance as stated by the NEC is 2.25in³

See attached Table 314.16(B) from NEC 2011

4 0
3 years ago
Which of the following is not an example of work being done on an object?
IrinaVladis [17]

Answer:

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6 0
2 years ago
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spayn [35]

Answer:

The answer would be B) The Same

Explanation:

Not gonna lie I checked my class notes but I figured this would help :)

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The work done by an engine equals one-fourth the energy it absorbs from a reservoir. True or False
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True IF the engine is 25% efficient. False otherwise.

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