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jek_recluse [69]
2 years ago
8

Can someone help me with this please

Physics
1 answer:
Anestetic [448]2 years ago
7 0
Independent- nose of the airplane
dependent - paper clips
control - how many paper clips
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2 years ago
What are the products of the double-replacement reaction between potassium bromide and silver nitrate? Name the resulting compou
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Explanation:

A double replacement reaction is a reaction in which two different compounds are mixed together and both their cations and anions get exchanged with each other respectively.

When potassium bromide reacts with silver nitrate then it results in the formation of potassium nitrate and silver bromide.

The chemical reaction equation is as follows.

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3 years ago
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A proton, an alpha particle (a bare helium nucleus), and a singly ionized helium atom are accelerated through a potential differ
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Answer:

The correct question is:

"Find the energy each gains"

The energy gained by a charged particle accelerated through a potential difference is given by

\Delta U = q\Delta V

where

q is the charge of the particle

\Delta V is the potential difference

For a proton,

q=+e=1.6\cdot 10^{-19}C

And since \Delta V=100 V

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For an alpha particle,

q=+2e=3.2\cdot 10^{-19}C

Therefore, the energy gained is

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Finally, for a singly ionized helium nucleus (a helium nucleus that has lost one electron)

q=+e=1.6\cdot 10^{-19}C

So the energy gained is the same as the proton:

\Delta U=(1.6\cdot 10^{-19})(100)=1.6\cdot 10^{-17}J

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