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Shalnov [3]
3 years ago
9

A tennis ball bounces on the floor three times, and each time it loses 23.0% of its energy due to heating. how high does it boun

ce after the third time, if we released it 4.0 m from the floor?
Physics
1 answer:
Anika [276]3 years ago
7 0
<span>1.8 meters Since the ball loses 23.0% of it's energy with each bounce, that means that it retains 100% - 23.0% = 77.0% of it's energy per bounce. And since it bounces 3 times, that means that it will have 0.77^3 = 0.456533 = 45.6533% of it's original energy after the third bounce. So it will reach 45.6533% of it's original height after the third bounce. So 45.6533% * 4.0 = 0.456533 * 4.0 m = 1.8 m</span>
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How would you go about separating the components of a mixture of sand, gravel, salt and iron filings
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3 years ago
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lakkis [162]

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d_h=\frac{0.684g}{mL}

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m_h=31\text{ g}

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The volume of heptane will be

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\begin{gathered} V_w=\frac{m_w}{d_w} \\ =\frac{37}{1} \\ =37\text{ mL} \end{gathered}

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The total volume of liquid in the cylinder will be

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The total volume of liquid in the cylinder will be 82.32 mL.

7 0
1 year ago
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arsen [322]
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3 years ago
When the air resistance can be ignored the velocity of an object dropped initially from rest is given by the following equation
ad-work [718]

Answer:

I am confused of your question. Do you want final velocity? To get final velocity, use (initial V)+(Gravity*Time)

Explanation:

8 0
4 years ago
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