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IgorC [24]
4 years ago
7

Find the acceleration of the block.

Physics
1 answer:
sergeinik [125]4 years ago
7 0

Answer:

C. 7 m/s²

Explanation:

The horizontal forces acting on the block are the 80 N tension, the 60 N tension, and friction.  Apply Newton's second law:

∑F = ma

80 N − 60 N − F = (10 kg) (1 m/s²)

20 N − F = 10 N

F = 10 N

If S₁ goes away, the acceleration becomes:

∑F = ma

80 N − 10 N = (10 kg) a

70 N = (10 kg) a

a = 7 m/s²

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Answer:

They are malleable.

Explanation:

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All metals are malleable.

The reason why metals are malleable is because the atoms in the metals have a stable structure and hence, when beaten, the atoms can move freely among each other and maintain their structure.

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3 years ago
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Explanation:

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According to this perspective, our personality is due to past, unresolved conflicts
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3 years ago
Jason and Guy are throwing watermelons straight up from the ground. (They’re making fruit salad.) Jason throws his watermelon at
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