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Alchen [17]
3 years ago
11

The source of alpha particles in a smoke detector is the

Chemistry
1 answer:
pantera1 [17]3 years ago
5 0

The source of alpha particles in a smoke detector is the Americium.

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Assuming an electron is a hydrogen atom can undergo any of the transitions below, thus changing its energy. Which transition is
inn [45]

Answer:

n = 3 to n = 5

Explanation:

According to the Bohr's model of the atom, electrons in an atom absorb energy to move from a lower to higher energy level.

We must note that as we progress away from the nucleus, the energy levels of electrons become closer together. The energy difference between successive levels decreases and the wavelength of light associated with such transitions become longer.

Hence,the absorption of light of the longest wavelength corresponds to n = 3 to n = 5

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3 years ago
Mass is measured in= a. Liters b. centimeters c. newtons d. kilograms
ale4655 [162]
Mass is measured in kilograms.
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2 years ago
Which lists the waves in order of frequency, from highest to lowest?
Ulleksa [173]

Answer:

C

Explanation:

I just aswered this question and i got it right

7 0
3 years ago
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How many days would it take for a crepe myrtle tree to grow 1 cm in height if it grows 3.38 feet per year?
ololo11 [35]
It's very easy, it's depending mainly on converting a mathematical unit:

When 1 Cm = 0.0328084 Ft
So, we assume that: 
in    1 year → it grows 3.38 Ft

So  X(years)→ 0.0328084

∴X(years) = 0.0328084 * 3.38 = 0.0097 year

We have to convert this unit form years to days by:

       1 year = 365 days
So,  0.0097 =  X (days)
∴X(days)= 365 * 0.0097 = 3.5 days

So it will take 3.5 days to grow up

7 0
3 years ago
Select all that apply: Select the benefits of sexual reproduction.
malfutka [58]
Sexual reproduction promotes adaptations, increases genetic diversity, and increases chances of survival. 
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