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2 years ago

Which of the following best explains why energy transfers are never 100%

Physics

2 answers:

xz_007 [3.2K]2 years ago

6 0

Answer:

A. Some energy is always converted to unusable forms in the

Explanation:

The second law relates to the quality of energy. This law states that whenever energy is transformed, some of must be degraded into a less useful form. In ecosystems, the biggest losses occur as respiration.

hope it helps you and give me a brainliest

Kryger [21]2 years ago

6 0

I believe it’s A

Hope this helps

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What two simple machines are found in a bike?

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3 years ago

While watching a movie a spaceship explodes and there is a loud bang and flash of light. What is wrong with this scene? Explain

Ksenya-84 [330]

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3 years ago

20 quantities and classified them in vector and scaler quantities

ss7ja [257]

Answer:

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3 years ago

A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average masses of 18.5 kg, and the

meriva

Answer:

a. $2.86 m/s^2$

b.1058 N

Explanation:

We are given that

Mass of each dog,M=18.5 kg

Mass of sled with rider,m=250 kg

a.Average force,F=185 N

$\mu_s=0.14$

$g=9.8 m/s^2$

By Newton's second law

$8F-f=(8M+m)a$

$a=\frac{8F-f}{8M+m}=\frac{8(185)-(0.14)(9.8)(250)}{8(18.5)+250}$

$a=2.86 m/s^2$

b.By Newton's second law

$T=ma+\mu_s mg$

Substitute the values

$T=250\times 2.86+0.14(250)(9.8)=1058 N$

Hence, the force in the coupling between the dogs and the sled=1058 N

8 0

3 years ago

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Butoxors [25]

Explanation:

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3 years ago

Read 2 more answers