Can someone help me solve these two problems..

1. Find the magnitude of the force between two
charges of 1 C each that are 2 m apart.
2. A charge of 5 x10-9 C is attracted by a charge of
–3x10-7 C with a force of 0.135 N. How far apart
are they? (Hint: manipulate the equation to get an
expression for d)

Question

Can someone help me solve these two problems..

1. Find the magnitude of the force between two
charges of 1 C each that are 2 m apart.
2. A charge of 5 x10-9 C is attracted by a charge of
–3x10-7 C with a force of 0.135 N. How far apart
are they? (Hint: manipulate the equation to get an
expression for d)

mrdoe · Answer

use coulomb's law, then just solve for the variable you need

anonymous · Answer

Can you help me please?

anonymous · Answer

Use coulombs law, F = Q_1*Q_2/(4*Pi*Epsilon_0*r^2)

vincent-lyon.fr · Answer

or rewritten  $F = \LARGE \frac {Q_1Q_2}{4\pi\epsilon_o \,r^2}$

anonymous · Answer

Can you help me with the second problem?

anonymous · Answer

go with the hint and you will have the answer

anonymous · Answer

can you help me with the first part?

anonymous · Answer

you have already been helped ......just put the values in the coulumb's law in it use the value of charge as 1C and distance as 2m given in the question itself i hope you know the value of k

anonymous · Answer

No, i mean on the second question.. I don't know how to start it.