Answer
(a) $T=0.0063N$
(b) greater
Work Step by Step
(a) We know that
$T=\frac{mg}{2sin\theta}$
We plug in the known values to obtain:
$T=\frac{(0.16\times 10^{-3})(9.81)}{2sin7.2^{\circ}}$
$T=0.0063N$
(b) Tension and the angle are related as $T=\frac{mg}{2sin\theta}$. This equation shows that tension and angle are inversely proportional. Thus, by decreasing the angle, the tension will increase.
