3 points charges are located at the corners of an equilateral triangle q1=7uc q2=2uc q3=-4uc. Calculate the resultant electric force on the 7 uc charge​

The answer is d) by requesting advice on science internet sites

Answerthe energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.explanationwe define electric potential as the ratio electric potential energy to the charge,    then the following gives us the potential difference,      the formula  may be on your formula sheet.the change in electric potential energy would be the energy that would needed to move it from point a to point b. solving for that, we get    using q = 8.00  × 10⁻¹⁹ c and  δv = 2.00 v, we get    the energy required is 1.60 × 10⁻¹⁸ j, to three significant figures.

How are period and frequency related to each other? dperiod is the reciprocal of frequency.

Despite their crazy structure, human bones are surprisingly good!