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3 years ago

PLEASE HELP ASAP!!!!!

Physics

1 answer:

liq [111]3 years ago

4 0

Answer:

r = 0.37 m

Explanation:

Use Coulomb's law to solve for r:

F = kq1q2/r^2

---> r^2 = kq1q2/F

= (8.99×10^9)(5.6×10^-4)(-2.1×10^-4)/(-7.7×10^3)

= 0.1373 m^2

or r = 0.37 m

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This is the normal reaction applied by the scale on the person, and which is directed upward. Besides this force, there is still the weight W of the person, acting downward. So, if we use Newton's second law:
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3 years ago

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