3 years ago

Fill in the blank please I’m very confused

Physics

1 answer:

Reika [66]3 years ago

4 0

For the third one on the top you can put to get solar panels on your roof

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In a healthy body, the heart pumps blood efficiently. When the heart has a problem, heart failure can occur. Heart failure can h

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sergey [27]

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The time is 1.8s

Explanation:

The ball droped, will freely fall under gravity.

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$h= \frac{1}{2}g{t}^{2}$

Where h is the height from which the ball is droped, g is the acceleration due to gravity that acted on the ball, and t is the time taken by the ball to hit the ground.

From the question,

h=16m

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By substitution we obtain,

$16= \frac{1}{2}\times 9.8{t}^{2}$

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Diving through by 9.8

$\frac{32}{9.8}= \frac{ 9.8{t}^{2} }{9.8}$

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square root both sides, we obtain

$\implies t= \sqrt{3.265}$

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3 years ago