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STatiana [176]
3 years ago
14

A piece of wood has a mass of 25g and a volume of 10cm3 What is its density?

Physics
1 answer:
Tasya [4]3 years ago
3 0

Answer:

<h3>The answer is 2.5 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{25}{10}  =  \frac{5}{2}  \\

We have the final answer as

<h3>2.5 g/cm³</h3>

Hope this helps you

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Elanso [62]

Answer:

8.13secs

Explanation:

From the question weal are given

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324 = 0(t)+1/2(9.8)t²

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4 0
3 years ago
A roller coaster starts from rest at its highest point and then descends on its (frictionless) track. its speed is 40 m/s when i
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Given that,

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For half height, that is, s = 40.77m

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2 * 9.81 * 40.77 = Vf² - 0²

Vf² = 800

Vf = 28.28 m/s

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