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3 years ago

8

E=MC2 ? What does it mean

1 answer:

PSYCHO15rus [73]3 years ago

8 0

Dear user.....

E<span> = </span>mc<span> 2 </span>definition<span>. An equation derived by the twentieth-century physicist Albert Einstein, in which </span>E<span> represents units of energy, m represents units of mass, and c 2 is the speed of light squared, or multiplied by itself.
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Answer:

$d = 145.6 cm$

Explanation:

first ball rolls on the porch by total distance

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Then again it will move on horizontal floor

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also in vertical direction it will drop down

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so we have

$x = 60 + 80$

$x = 140 cm$

$y = 40 cm$

so magnitude of net displacement of the ball is given as

$d = \sqrt{140^2 + 40^2}$

$d = 145.6 cm$

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