When a metal bar is heated the increase in length is greater if

Physics

1 answer:

lorasvet [3.4K]3 years ago

6 0

Answer:

Explanation:

i think the answer is A

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Critical angle of glass is 42 .what does it mean?

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Answer:

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Explanation:

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You work at a garden store for the summer, and you lift a 14 kg bag of fertilizer with a force of 227 N.

nika2105 [10]

Answer:

(a) Acceleration of the bag will be a=16.214m/sec^2

(B) Weight of the bag will be 137.2 N

Explanation:

We have given mass of the bag m = 14 kg

Force with which bag is lifted = 227 N

(A) According to newtons law we force is equal to F = ma , here m is mass and a is acceleration

So $227=14\times a$