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alexandr1967 [171]
4 years ago
15

What causes a nucleus to become radioactive?

Physics
1 answer:
timurjin [86]4 years ago
4 0

Answer:

Answer the strong nuclear force attracts and binds protons and makes the nucleus unstable

Explanation:

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What is not an example of absorption ?
blsea [12.9K]

-- water shooting out of a hose

-- writing an email

-- making hard-boiled eggs

-- driving to the dentist

-- the emission spectrum of a carbon arc

-- buying a new car

-- putting your shoes on

-- singing a song

-- cutting a tree down

-- learning to dance

-- cleaning the windows

-- building a radio

-- ironing your shirt

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3 0
3 years ago
2. Explain what happened to the electrons in an ion with a charge of +1.
Stella [2.4K]

Answer:

An atom always has the same number of electrons as protons. Electrons have an electric charge of -1 and protons have an electric charge of +1. Therefore, the charges of an atom's electrons and protons “cancel out.” This explains why atoms are neutral in electric charge.

Explanation:

7 0
3 years ago
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if you had a trapped gas and continued to cool it until the lowest possible temperature is reached the temperature is called
prisoha [69]
Absolute Zero.

Kelvin 0 is Absolute Zero, the atoms cannot physically become any closer.
Celsius -273.15
7 0
3 years ago
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An athlete performing a long jump leaves the ground at a 32.9 ∘ angle and lands 7.78 m away.part a )what was the takeoff speed ?
MatroZZZ [7]

Answer:

Explanation:

Given

Inclination \theta =32.9^{\circ}

Distance of landing point R=7.78\ m

Considering athlete to be an Projectile

range of projectile is given by

R=\frac{u^2\sin 2\theta }{g}

where u=launch velocity

7.78=\frac{u^2\sin (2\times 32.9)}{9.8}

u^2=83.58

u=\sqrt{83.58}

u=9.142\ m/s

(b)If u is increased by 8% then

new velocity is u'=9.87\ m/s

R'=\frac{u'^2\sin 2\theta }{g}

R'=9.07\ m

 

3 0
3 years ago
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Which statement descThe image shows the right-hand rule being used for a current-carrying wire.
Makovka662 [10]
Answer:

The second option.
When the current flows up the wire, the magnetic field flows out on the left side of the wire and in on the right side of the wire.

Explanation:

The first figure that I copy here with is the figure corresponding to this question.

The thumb is pointing upward.

The rule is that the thumb aims to the direction of the flow of current and the other fingers give the field lines.

The second figure that I attach is a free image from internet and it shows the direction of both the current and the fiedl lines.

So, the conclusion is that the current goes upward the wire and the field lines go out of the paper (screen) for the points to the left of the wire and in on the right side of the wire.

4 0
3 years ago
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