Question

an electron of mass 9.1 into 10 power minus 31 kg is at a distance of 10 power zero from a Proton of mass 1.67 into 10 power minus 27 kg calculate the gravitational force of attraction between them

Answer 1

Answer:

Explanation:

Force,F on electron with charge 'q' in electric field E is  q* E

Weight of electron with mass m_E  in gravity, g = m_E* g

For electric force to be equal to its weight F=m_E*g

This implies, q*E = m_E*g

Hence, E= m_E*g/q  

m_E = 9.1x10^-31 Kg

g = 9.8 m/s^2

q = 1.6×10^-19  C

Putting in the numbers we get

E = 5.6x10^-11 V/m the required electric field.

Answer 2

Answer:

the Mass of proton is approximately 2000 times that of an electron.

Explanation:

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