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riadik2000 [5.3K]
3 years ago
14

In which situations is work being done?

Biology
2 answers:
frez [133]3 years ago
6 0

Answer:

Option D

Explanation:

Work is done when an object displaces from its initial position on the application force.  

In option A, the car rolls down without the application of force and hence it is not correct.

In option B , Turbine is standing still and hence again there is no force or displacement which could lead to work. Hence, it is also incorrect

In option C, the internal molecules of balloon starts moving after gaining heat energy but there is no displacement of balloon overall and hence the work done is zero.  

However, in option D work is done in pedaling the cycle. The number of revolutions of the cycle is counted which is cal-liberated and converted into distance in kilometers. Hence, it is correct

Novosadov [1.4K]3 years ago
4 0

james pedals a stationary exercise cycle that doesn’t move

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CaHeK987 [17]

Answer:

True (although question is not clear enough)

Explanation:

Adaptive radiation occurs when <u>organisms evolve from the same ancestor. This process takes place as a result of environmental changes or when they are introduced to or colonize a new environment.</u> These changes become challenges that force these individuals to adapt to these new conditions.

Therefore, <u>this results into a faster evolution that creates different new forms</u> that possess a diversity of variations adapted to their new feeding habits, environment, and behavioral needs.

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Answer:

Villi

Explanation:

Hope this helps have a good day :)

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3 years ago
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The information as stated is false.

<h3>What is a microscope?</h3>

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The first compound microscope was discovered by Robert Hooke and was used extensively in the study of cells and this is how the study of microorganisms became more elaborate.

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Learn more about microscope:brainly.com/question/18661784?

#SPJ1

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