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loris [4]
3 years ago
15

Can someone help me on no. 6

Physics
1 answer:
liq [111]3 years ago
8 0

Efficiency = (energy that does the job) / (total energy used)

               =                               (45 J)  /  (120J)

I think you can handle the division.

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Find the mass. 10 points. Will give brainliest.
TiliK225 [7]

Answer:

<h2>3.94 kg</h2>

Explanation:

Given,

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Now, Let's find the mass of the ball

Using the Newton's second law of motion:

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Use the commutative property to reorder the terms

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Divide both sides of the equation by 7.6

\frac{7.6 \: m}{7.6}  =  \frac{30}{7.6}

Calculate

m = 3.94 \: kg

Hope this helps..

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3 years ago
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