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3 years ago

Which statement about an atom is correct?

Physics

1 answer:

Alexus [3.1K]3 years ago

7 0

Answer:

$\boxed{ \sf{The \: electron \: has \: a \: negative \: charge \: and \: is \: found \: outside \: of \: the \: nucleus}}$

Option A is correct

Explanation:

Let's check the options:

A: The electron has a negative charge and is found outside of the nucleus.

$\mapsto{}$ Yeah! It's TRUE . An electron is a negatively charged particle and is located outside the nucleus of an atom.

B : The neutron has a negative charge and is found in the nucleus.

$\mapsto{}$ No! It's FALSE . A neutron carries no charge. i.e it is a neutral particle and found inside the nucleus.

C : The proton has no charge and is found in the nucleus.

$\mapsto{}$ No! It's FALSE.A proton is a positively charged particle present inside nucleus of an atom.

D : The neutron has no charge and is found outside of the nucleus.

$\mapsto{}$ I agree that the neutron has no charge. But it is found inside the nucleus not outside . So, this statement is FALSE .

Hence, we found our answer! :D

A. The electron has a negative charge and is found outside of the nucleus is the correct statement about an atom.

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

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An 80-kgkg quarterback jumps straight up in the air right before throwing a 0.43-kgkg football horizontally at 15 m/sm/s . How f

vladimir1956 [14]

Answer:

V = 0.0806 m/s

Explanation:

given data

mass quarterback = 80 kg

mass football = 0.43 kg

velocity = 15 m/s

solution

we consider here momentum conservation is in horizontal direction.

so that here no initial momentum of the quarterback

so that final momentum of the system will be 0

so we can say

M(quarterback) × V = m(football) × v (football) ........................1

put here value we get

80 × V = 0.43 × 15

V = 0.0806 m/s

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When we apply the energy conversation principle to a cylinder rolling down an incline without sliding, we exclude the work done

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Answer:

D. the linear velocity of the point of contact (relative to the inclined surface) is zero

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4 years ago

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3 years ago

A particle of mass 2 g travel a distance of 12 m in a time travel of 2 minute assuming the speed was constant find its kinetic e

balandron [24]

Answer:

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Explanation:

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3 years ago

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TEA [102]

Answer:

1) x_total = 2.7 km=2700 m, 2) t_total = 1926 s, 3) v_avg = 1.40 m / s

Explanation:

1) To solve this uniform velocity problem, we must find the displacement of each part and add them.

x_total = x₁ + x₂

x_total = 0.7 + 2.0

x_total = 2.7 km

2) how long does it take for this tour

truck

v = x₁ / t₁

t₁ = x₁ / v

t₁ = 0.7 / 20

t₁ = 0.035 h

Let's reduce the time to the SI system

t₁ = 0.035 h (3600 s / 1h) = 126 s

when he is walking

t₂ = 30 min (60 s / 1min) = 1800 s

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t_total = t₁ + t₂

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t_total = 1926 s

3) the average velocity is defined as the displacement in the inerval between time

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3 years ago