The mechanical energy of an object is equivalent to the sum of its potential and kinetic energy. If the helicopter is grounded, then its mechanical energy will be 20 J. If it is in the air, then its potential energy will be calculated using:P.E = mghAnd then added to the kinetic energy to obtain mechanical energy.
Piece of a jar is that better
duh i mean if this is history then don't you think it is about people against people like really
Technology can definitely have a negative impact on the environmen, for example the current global warming is caused by the release of the greenhouse gasses into the atmosphere.
But it can also have a positive impact, for example, it can serve to clean rivers or control devastating floods.
So the correct answer is:C!
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Answer:
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<em><u>Focus</u></em></h2>
<em><u>Always</u></em><em><u> </u></em><em><u>think</u></em><em><u> </u></em><em><u>about</u></em><em><u> </u></em><em><u>win</u></em>
<em><u>Try</u></em><em><u> </u></em><em><u>your</u></em><em><u> </u></em><em><u>best</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>understand</u></em><em><u> </u></em><em><u>what</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>challenge</u></em><em><u> </u></em><em><u>really</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em>
<h2>
<em><u>The</u></em><em><u> </u></em><em><u>challenge</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>always</u></em><em><u> </u></em><em><u>be</u></em><em><u> </u></em><em><u>there</u></em><em><u> </u></em><em><u>but</u></em><em><u> </u></em><em><u>let</u></em><em><u> </u></em><em><u>success</u></em><em><u> </u></em><em><u>welcome</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em></h2>
<em><u>Winners</u></em><em><u> </u></em><em><u>never</u></em><em><u> </u></em><em><u>quit</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>quitters</u></em><em><u> </u></em><em><u>never</u></em><em><u> </u></em><em><u>win</u></em><em><u>.</u></em>
Explanation:
I copied it on no Website.Its from my intelligent mind.
So I deserve a Brainliest
