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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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KonstantinChe [14]

Answer:

2.145×10^-10 V or 0.2145nV

Explanation:

From hf=eV

h= Plank's constant = 6.6×10^-34JS

f= frequency of the electromagnetic wave = 5.2×10^4 Hz

e= electronic charge= 1.6×10^-19 C

V= voltage

V= hf/e

V= 6.6×10^-34JS × 5.2×10^4 Hz/ 1.6×10^-19 C

V= 2.145×10^-10 V or 0.2145nV

Therefore the voltage created is 2.145×10^-10 V or 0.2145nV

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The greatest variation in size, mass, and luminosity occurs in elliptical galaxies.

<h3>What is Variation?</h3>

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In the solar system, variation in features such as size, mass, and luminosity occurs mostly in elliptical galaxies due to presence of array of stars thereby making it the most appropriate choice.

Read more about Elliptical galaxies here brainly.com/question/24985948

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2 years ago
QUESTION 1
Sveta_85 [38]

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7 0
3 years ago
El tiempo que habria que esperar para que el dia fuera 1 hora mas largo que es hoy
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Explanation:

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3 years ago
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Aleksandr-060686 [28]

Answer:

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Explanation:

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