Complete

$-.(2/\%$ or Assignment Value$)$

Charge $q_1=11nC$ is located at the coordinate system origin, while charge $q_2=4\mathrm{.}38nC$ is located at $(a,0),$ where $a=1\mathrm{.}5m.$ The point P has coordinates $(a,b),$ where $b=0\mathrm{.}75m.$ A third charge $q_3=18\mathrm{.}5nC$ will be placed later.

Part $($a$)$

Find the electric potential $V_P$ at point P $,$ in volts. Assume the potential is zero at infinity.

$V_P=$

$cos()tan()(1)$

$8$

$$

$$

asin$()$

$$

acos$()$

E

$(1)$

$($x$)$

$4$

$5$

$6$

$(6)$

$5-2$

atan$()$

acotan$()$

$sinh()$

$0$

$(0)$

$(*)$

$1$

$2$

$(3)$

$$

tanh$()$

cotanh$()$

D

$+$

$$

$$

Degrees

Radians

$(10)$

$$

$$ D$.$

Submit

$$

Hint

$)$

$3$ Submission$($s$)$ Remaining

Hints: $q,$ deduction per hint. Hints remaining:

$=$

Feedback:

$q,$ deduction per feedback

Part $($b$)$

How much work $W,$ in joules, would you have to do to bring the third charge, $q_3,$ from very far away to the point $P?$