3 years ago

Explain the difference between an electrically charged and a neutral object

Physics

1 answer:

Stella [2.4K]3 years ago

7 0

An electrically charged element is called an "ion". A neutral element is an atom.

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Newly discovered planet has twice the mass and three times the radius of the earth. What is the free-fall acceleration at its su

skad [1K]

Answer:

$g_n=\dfrac{2}{9}g$

Explanation:

M = Mass of Earth

G = Gravitational constant

R = Radius of Earth

The acceleration due to gravity on Earth is

$g=\dfrac{GM}{R^2}$

On new planet

$g_n=\dfrac{G2M}{(3R)^2}\\\Rightarrow g_n=\dfrac{2GM}{9R^2}$

Dividing the two equations we get

$\dfrac{g_n}{g}=\dfrac{\dfrac{2GM}{9R^2}}{\dfrac{GM}{R^2}}\\\Rightarrow \dfrac{g_n}{g}=\dfrac{2}{9}\\\Rightarrow g_n=\dfrac{2}{9}g$

The acceleration due to gravity on the other planet is $g_n=\dfrac{2}{9}g$

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3 years ago

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What is linear momemtum

Genrish500 [490]

Answer:

Its momentum thats linear

Explanation:

from my secret analysis i would say this is really linear

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What is the average speed of an aircraft which travels 600m in 10 seconds ？

matrenka [14]

Answer:

60 meters per second

Explanation:

600/10=60

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What is the mechanical advantage of the wheel and axle shown below?

goldenfox [79]

Answer:

B. 120

Explanation:

24/.2 = 120

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YOU WILL GET BRAINLIEST Geologists can determine the relative ages of sedimentary layers by using the Law of Superposition. This

Lilit [14]

I personally think the answer is B.
<span>"Non- horizontal rock layers were tilted or folded after they were originally deposited; this makes the law of superposition challenging to use."</span>
Hoped I helped!

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