A point charge is placed 3 m from a 4 uC charge. What is the strength of the electric field on the point charge at this
distance? (Round to the nearest whole number.)

4000v/m

Explanation:

Explanation:

the information we have is:

distance:  

charge:

since the prefix is equal to

the charge is:

------------------

To calculate the strength of the electric field we use the following formula:

where is the charge, is the distance and is Coulomb's constant

substituting all the known values into the formula:

The strength of the electric field on the point charge at the distance of 3m is 4,000 N/C.

the answer is 3.1 his answer is wrong mines is right

no. dot product   =0 when vecs at right angles