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svetoff [14.1K]
3 years ago
14

Which of the following has the least impact on the environment?

Physics
2 answers:
seraphim [82]3 years ago
8 0
The answer should be A) solar power
Keith_Richards [23]3 years ago
3 0
The answer is A because sunlight is unlimited
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A biologist formulates a hypothesis, performs experiments to test his hypothesis, makes careful observations, and keeps accurate
SVEN [57.7K]
<span>The next step of the scientific method is to analyze the results and draw conclusions. After that step, if the results agree with the hypothesis, then the results should be communicated. If the results do not support the original hypothesis, then the biologist must go back to the beginning and reformulate their hypothesis based on the results of the experiment.</span>
4 0
3 years ago
A light ray moving at a 54.3 deg
MrMuchimi

Answer:

45.25^{\circ}

Explanation:

Applying Snell's law

n_1sin\theta_1 = n2*sin\theta_2\\1.33*sin(54.3) = 1.52*sin\theta_2\\sin\theta_2 = 1.33*0.81208353/1.52 = 0.71057\\\theta_2=sin^{-1} (0.71057)\\\theta_2 = 45.25^{\circ}

3 0
2 years ago
Can any ideal gas power cycle have a thermal efficiency greater than 55 percent when using thermal energy reservoirs at 627∘C at
Yanka [14]

Answer:

Since the maximum thermal efficiency is higher than 55 percent, there can be a power cycle with these reservoir temperature with an efficiency higher than 55 percent.

Explanation:

The maximum thermal efficiency is determined from the given temperature

nth Carnot = 1- TL/TH

Where TL= 17+273= 290k

TH= 627*273= 900K.

nth Carnot = 1- 290/900 = 0.68

0.68*100 = 68 percent

8 0
3 years ago
In the velocity and acceleration are in the same direction the speed of the object decreases
DiKsa [7]

Answer:

False

Explanation:

Im pretty sure the answer is false

7 0
2 years ago
A glass of water with a mass of 0.35 kg rests on the edge of a desk 0.85 m
ivolga24 [154]

Answer:it’s c

Explanation:

Just is

3 0
3 years ago
Read 2 more answers
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