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kow [346]
3 years ago
15

What is the role of neutrons in an atom?

Physics
2 answers:
yawa3891 [41]3 years ago
6 0

Answer:

B) neutron keep protons apart so they don’t repel  each other

Explanation:

Neutrons are of almost same mass as that of protons mass or we can say it is slightly greater than the mass of proton

There is no charge on the neutrons as they are neutral and they resides inside the nucleus.

since nucleus is a small region where large number of protons and neutrons exists so in this small region protons must have large repulsion force between them but since this repulsion force is counterbalanced by the strong nuclear force between the neutrons and protons so here role of neutrons is to provide sufficient strong force to bound the nucleons together

so here correct answer will be

B) neutron keep protons apart so they don’t repel  each other

mihalych1998 [28]3 years ago
5 0
Hihi!

The correct answer is B) <span>neutron keep protons apart so they don’t repel 
each other! </span><span>The </span>neutron<span> also adds mass to the </span>atom<span>! 
</span>
I hope I helped!
-Jailbaitasmr
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A 30-mm-diameter copper rod is 1 m long with a yield strength of 70 MPa. Determine the axial force necessary to cause the diamet
ivolga24 [154]

Explanation:

Given data:

d = 30 mm = 0.03 m

L = 1m

S_{y} = 70 Mpa

Δd = -0.0001d

Axial force = ?

validity of elastic deformation assumption.

Solution:

O'₂ = Δd/d = (-0.0001d)/d = -0.0001

For copper,

v = 0.326      E = 119×10³ Mpa

O'₁ = O'₂/v = (-0.0001)/0.326 = 306×10⁶

∵δ = F.L/E.A    and σ = F/A so,

σ = δ.E/L = O'₁ .E = (306×10⁻⁶).(119×10³) = 36.5 MPa

F = σ . A = (36.5 × 10⁻⁶) . (π/4 × (0.03)²) = 25800 KN

S_{y} = 70 MPa > σ = 36.5 MPa

∵ elastic deformation assumption is valid.

so the answer is

F = 25800 K N            and     S_{y} > σ

3 0
3 years ago
An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. which is the
stellarik [79]
<span> 1.the atom has 7 neutrons and 8 protons....

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Hope it helps !!!
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2 years ago
An evacuated long tube contains a coin and a feather. If both objects fall together starting from the top of the tube, it is exp
Natasha_Volkova [10]

Answer:

gexp = 3.65 m/s²

Explanation:

The value of acceleration due to gravity changes with the altitude. The following formula gives the value of acceleration due to gravity at some altitude from the sea level:

gexp = g(1 - 2h/Re)

where,

gexp = expected value of g at altitude = ?

g = acceleration due to gravity at sea level = 9.8 m/s²

h = altitude = 2000 km = 2 x 10⁶ m

Re = Radius of Earth = 6.37 x 10⁶ m

Therefore,

gexp = (9.8 m/s²)(1 - 2*2 x 10⁶ m/6.37 x 10⁶ m)

<u>gexp = 3.65 m/s²</u>

5 0
3 years ago
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