What is the force, in terms of Coulomb's constant, between two electrical charges of #-105 C# and #-15 C# that are #15 m # apart?

Answer 1

#F_c=7*k " you can write " 9.10^9 " instead of k"#

#"force between two charges is given by :"F_c=(k*q_1*q_2)/d^2# #F_c=(k(-105)*(-15))/15^2# #F_c=(k*105*cancel(15))/cancel(15)^2# #F_c=(k*105)/15# #F_c=7*k " you can write " 9.10^9 " instead of k"#

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Answer 2

Lily Adams

The force between the two charges is ( -1.26 \times 10^{-8} ) N.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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