Answer:
9.8N
Explanation:
Given the following data;
Mass = 1kg
We know that acceleration due to gravity is equal to 9.8m/s²
To find the force:
Force = mass * acceleration
Substituting into the equation, we have:
Force = 1 * 9.8
Force = 9.8N
The gravitational effect of the moon causes both the high tide and low tides.
Answer:
v = √ k e²/m r
Explanation:
From the classical point of view the force between the nucleus and the electron is electrostatic
F = q E
q = e
we apply Newton's second law
F = m a
where the centripetal accelerations
a = v² / R
we substitute
e E = m v² / r
v² = ( e/m E r)
the electrioc field is
E = k q/r²
v² = e/m k e/r
v = √ k e²/m r
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