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Arturiano [62]
3 years ago
6

What is the atomic number of a sodium atom that has 11 protons and 12 neutrons

Physics
1 answer:
Ede4ka [16]3 years ago
8 0
The Atomic number for sodium is 11 cause it contains 11 protons. I hope this helps..
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Two identical blocks, A and B, are on a horizontal surface, as shown above. There is negligible friction between the surface and
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Answer:

  the speed of the center of mass stays the same

Explanation:

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Some strongly electric fish will stun prey by generating an electric current that runs
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3 years ago
A box slides down a ramp inclined at 24◦ to the horizontal with an acceleration of 1.7 m/s 2 . The acceleration of gravity is 9.
dsp73

Answer:

<h3>0.445</h3>

Explanation:

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\mu = \frac{F_f}{R}

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R is the reaction = Wcosθ

Substitute inti the equation;

\mu = \frac{Wsin \theta}{W cos\theta} \\\mu = \frac{sin \theta}{cos\theta} \\\mu = tan \theta

Given

θ = 24°

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Hence the coefficient of kinetic friction between the box and the ramp is 0.445

3 0
3 years ago
If the angle of incidence of a light source to a shiny surface is 30 degrees, what will the angle
Virty [35]
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5 0
3 years ago
Read 2 more answers
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