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Rudiy27
4 years ago
14

Why is it preferable to use Am in smoke detector?

Chemistry
1 answer:
vodomira [7]4 years ago
4 0

Answer:

Ionization smoke detectors use americium as a source of alpha particles. Alpha particles from the americium source ionize air molecules. This makes some particles positively charged and some negatively charged. ... Because of this shielding, the smoke detector poses no radiation health risk when they are properly handled.

Explanation:

Hope this helped! :D

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How does the ribosome know the sequence of amino acids
Andreyy89

Answer:

The ribosome contains three grooves which are sites for the tRNA. The first codon is AUG, which is called a "start codon". ... So, the tRNA that has the anti-codon sequence of UAC carrying the amino acid Met bonds to the mRNA codon. Another tRNA bonds to the next codon in the next groove with the next amino acid

7 0
3 years ago
Science-HELP ME IDK THE ANSWER TO THIS
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Answer:

Explanation:

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3 years ago
A leaf on a tree stars moving when the wind blows on it how is this an example of newton's first
Sphinxa [80]
The answer to your question is A. the wind exerts a force on the leaf causing its motion to change
5 0
3 years ago
Read 2 more answers
"Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrochloric acid
timurjin [86]

Answer:

KOH(aq) + HCl(aq) ——-> KCl(aq) + H2O(l)

Explanation:

A neutralization reaction is the chemical reaction between an acid and an alkali to yield salt and water only.

In this particular question, the acid is hydrochloric acid while the alkali is potassium solution. We now write the equation of reaction as follows:

KOH(aq) + HCl(aq) ——-> KCl(aq) + H2O(l)

The salt formed here is KCl otherwise called potassium chloride

3 0
3 years ago
Calculate the wavelength in nm of ultraviolet light with frequency of 5.5 x 10¹⁵ Hz.
snow_tiger [21]

Answer: Wavelength of ultraviolet light is 54 nm.

Explanation:

Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They can travel in vacuum as well and travel with the speed of light.

The relationship between wavelength and frequency of the wave follows the equation:

\nu=\frac{c}{\lambda}

where,

\nu = frequency of the wave  =5.5\times 10^{15}Hz

c = speed of light  =3\times 10^8ms^{-1}

\lambda = wavelength of the wave  

Putting in the values we get:

5.5\times 10^{15}s^{-1}=\frac{3\times 10^8ms^{-1}}{\lambda}

\lambda=0.54\times 10^{-7}m

1nm=10^{-9}m

\lambda=54nm

Thus wavelength of ultraviolet light is 54 nm.

6 0
3 years ago
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