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Goshia [24]
3 years ago
9

True or false , if acceleration is negative speed is decreasing

Physics
1 answer:
laiz [17]3 years ago
3 0
Personally based on my knowledge of physics I believe this is true
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Please, someone help me I'm begging yall 1. it's estimated that 1 kg of body fat will provide 3.8 * 10^7 J of energy. A 67 kg mo
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Answer:

0.24 kg used up

Explanation:

He has a mass of 67 kg

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work = 2.30 * 10^6 joules in scientific notation.

Part B

He needs 4 times this amount to climb the mountain because the body is only 25% efficient in converting energy.

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The total amount in a kg of fat = 3.8 * 10^7 joules

x kg of fat is needed to provide 9.20.*10^6 joules

1 kg / (3.8 * 10^7 J ) = x kg / (9.20 * 10^6 J)

9.20 * 10 ^6 * 1 = 3.8 * 10^7 *x

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