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iVinArrow [24]
3 years ago
8

Order the sequence of ideas that led to Marie Curie’s discovery of radioactive elements. Number the events in chronological orde

r starting with the oldest. Rutherford experimented with particles given off by radioactive elements. Dalton developed the theory that all matter is made of atoms. James Chadwick discovered the neutron.
Physics
1 answer:
Marysya12 [62]3 years ago
6 0

Answer:

2 1 3

Explanation:

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The magnitude of electric field is produced by the electrons at a certain distance.

E = kQ/r²

where: 
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Q = charge
r = distance
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Given are the following:
Q = </span><span>1.602 × 10^–19 C
</span><span>r = 38 x 10^-9 m

Substitue the given:
E = </span>\frac{( 1.602 x 10^{-19} )( 9.0x10_{9} )}{(38x10^{-9}) ^{2} }

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Vanyuwa [196]

Answer:

T^2 \propto L

Explanation:

The period of a simple pendulum is given by:

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From this equation we can write

T\propto \sqrt{L}\\T\propto \frac{1}{\sqrt{g}}

Taking the square of this equation, we get:

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For the first one, trees are organisms, so it’s B.

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A 20,000 kg railroad car is traveling at 5 m/s when it collides and couples with a second, identical car at rest. What is the re
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Why does a mountain of uranium not explode as a bomb? ​
djyliett [7]

Answer:

“A mountain of uranium” is an indefinable amount of uranium. If it means uranium ore as found in nature, then the concentration of uranium is orders of magnitude too low for any type of reaction.

Explanation:

smarty

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2 years ago
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