Explanation:
Charge of electron in He, 
Charge of proton in He, 
Distance between them, 
We need to find the electric force between them. It is given by :
Since, there are two protons so, the force become double i.e.
So, the correct option is (c). Hence, this is the required solution.
Answer:
Acceleration.
Explanation:
F = m x a
The 'a' in formula above is acceleration.
Force is simply defined as the product of mass and acceleration. Mathematically, it is expressed as
Force(F) = Mass(m) x acceleration (a)
F = m x a
Answer:
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The answer is "Density". defined as amount of matter per unit volume. It is also a measurement of how tightly matter is crammed together. Density is mass per unit volume. written as ρ = m/v. Greek letter ρ (rho). The derive unit for density is usually in Kg/m³.
Answer:
C. A baseball bat strikes a baseball.
Explanation:
Newton's second law of motion states that acceleration happens when force is applied on the mass.
<em>A baseball bat strikes a baseball is the best example of Newton's second law of motion because acceleration of the baseball is directly proportional to the force by which baseball bat hit it.</em>
Hence, the correct option is 'C. A baseball bat strikes a baseball.'
