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kolbaska11 [484]
3 years ago
15

What happens to an isotope that undergoes alpha decay

Physics
1 answer:
Gelneren [198K]3 years ago
3 0

When an isotope undergoes an alpha decay it means it has too many protons. The nucleus releases the alpha particle and energy.

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Sasha did an experiment to study the solubility of two substances. She poured 100 mL of water at 20 °C into each of two beakers
chubhunter [2.5K]

Answer:

b is the higher solubility then A

4 0
3 years ago
A helicopter is ascending vertically. a passenger accidentally drops her wallet out the sides of the helicopter when it is 160 m
Advocard [28]

Answer:

(E)56.0 m/s

Explanation:

Height =h=-160 m

Because the wallet moving in downward direction

Time=t=7 s

Final speed of wallet=v=0

We have to find the speed of helicopter ascending  at the moment when the passenger let go of the wallet.

v^2-u^2=2gh

Where g=9.8 m/s^2

Substitute the values

0-u^2=2(-160)\times 9.8

u^2=3136

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8 0
3 years ago
The half life of radium 222 is 38 seconds if you had a 12 gram sample how much would be left after 72 seconds
poizon [28]
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5 0
3 years ago
A classroom is about 3 meters high, 20 meters wide and 30 meters long. If the density of air is 1.29 kg/m3, what is the mass of
Deffense [45]

Answer:

the mass of the air in the classroom = 2322 kg

Explanation:

given:

A classroom is about 3 meters high, 20 meters wide and 30 meters long.

If the density of air is 1.29 kg/m3

find:

what is the mass of the air in the classroom?

density = mass / volume

where mass (m) = 1.29 kg/m³

volume = 3m x 20m x 30m = 1800 m³

plugin values into the formula

  1.29 kg/m³   =  <u>      mass    </u>

                             1800 m³

mass =  1.29 kg/m³  ( 1800 m³ )

mass = 2322 kg

therefore,

the mass of the air in the classroom = 2322 kg

8 0
3 years ago
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X-rays are used instead of visible light because X-rays have shorter ______________ than visible light, allowing them to produce
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X-rays have shorter wavelength than visible light. But that's hardly the reason that they're used for medical imaging. xrays have much higher frequencies then visible light which means they have much greater penetrating ability. with xrays you can see inside the body. you can't do that with a visible flashlight no matter how bright and powerful it is.
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3 years ago
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