(a)[1]
A cylinder has diameter $d = 0.0125\,\text{m} \pm 1.6\%$. Find the absolute uncertainty for this measurement.
(b(i))[1]
The cylinder in (a) is resting on a horizontal surface. The pressure $p$ applied to the surface by the cylinder is given by $p = \dfrac{4W}{\pi d^2}$. The cylinder’s measured weight $W$ is $0.38\,\text{N} \pm 2.8\%$. Determine $p$.
(b(ii))[2]
Find the absolute uncertainty in $p$.