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satela [25.4K]
3 years ago
10

WILL MARK BRAINLIEST!

Physics
2 answers:
viva [34]3 years ago
5 0

Answer:

True

Explanation:

Newton's first law of motion states that an object at rest will stay at rest unless acted upon by an outside force.

Kamila [148]3 years ago
5 0

Answer:

When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck. Newton's first law of motion states that an object at rest will stay at rest unless acted upon by an outside force.

Explanation:

so its true

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What does the Nucleolus do?
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Answer:

C

Explanation:

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3 years ago
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Nonmetals in the periodic table have a negative oxidation number. Which statement best explains why?
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They have a negative oxidation number because nonmetals gain electrons, thus making them negatively charged ions (anions). Metals become cations and have a positive charge because they lose electrons.
7 0
4 years ago
Which of the following is the SI unit used in measuring the temperature of a hot cup of coffee?
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Which of the following is the Sl unit used in measuring the temperature of a hot cup of coffee ?


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3 years ago
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An α-particle has a charge of +2e and a mass of 6.64 × 10-27 kg. It is accelerated from rest through a potential difference that
zzz [600]

Answer with Explanation:

We are given that

Charge on alpha particle=q=2 e=2\times 1.6\times 10^{-19} C

1 e=1.6\times 10^{-19} C

Mass of alpha particle=m=6.64\times 10^{-27} kg

Potential difference,V=1.97\times 10^6 V

Magnetic field,B=3.49 T

a.Speed of alpha particle=v=\sqrt{\frac{2 qV}{m}}

By using the formula

v=\sqrt{\frac{2\times 2\times 1.6\times 10^{-19}\times 1.97\times 10^6}{6.64\times 10^{-27}}

v=1.38\times 10^7 m/s

b.Magnetic force,F=qvB=2\times 1.6\times 10^{-19}\times 1.38\times 10^7\times 3.49=1.5\times 10^{-11} N

F=1.5\times 10^{-11} N

c.Radius of circular path, r=\frac{mv^2}{F}

r= \frac{6.64\times 10^{-27}\times (1.38\times 10^7)^2}{1.5\times 10^{-11}}

r=0.084 m

5 0
3 years ago
The spring to launch a pinball in a pinball machine is compressed 25 cm and has a spring constant of 140 N/m.
mote1985 [20]

Answer:

I think it is 5.6. This is my answer

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