Answer:
Explanation:
Potential at a point near a charge = Q / 4πε₀ R
where Q is charge given , R is distance of point from the charge .
Q / 4πε₀ R = 40
Electric field E at A = -dV / dR
= .16 x 10⁻³ / 2 x 10⁻⁶
= .08 x 10³
= 80 N/C
E = Q / 4πε₀ R²
80 = Q / 4πε₀ R x R
80 = 40 / R
R = 40 / 80
= .5 m .
Simplicity of conducting the study is to archival research; as ability to test large numbers participants is to survey.
Answer:
Where is question 12, we need it to answer this question
Explanation:
Distance and force.
You need to know how much force was needed and how far it went to calculate how much work was done. The answer is C.