ESTION ii

$[$Total $=10$ marks$]$

A certain liquid has relationships between its Density $(),$ the Angle of Contact it forms with a glass wall $()$ and its Surface Tension $().$ These relationships are given by the following equations and rules:

If $$ is $60$ but $90$;$=3\mathrm{.}92**Radians()**(Sin(Radians()){)}^{3}q,$ equation $($i$)$

If $$ is $>90$ but $120$;$=\frac{3\mathrm{.}92**Radians()}{(Sin(Radians()){)}^3}q,$ equation $($ii$)$

If or $>120$;$=$ "Not Applicable" $q,$ equation $($iii$)$

$=\frac{35\mathrm{.}4(+1)}{1000}$

$...$ equation $($iv$)$

Note: $$ is in grams $\frac{?}{c{m}^3}$; $$ is in Newtons$/$metre and $$ is in degrees.

$60$

If a glass capillary tube is inserted into the liquid, the liquid will rise $($or fall$)$ a Distance $(h)$ along the tube given by equation $(v)$:

$h=\frac{2(cos(Radians()))}{((**1000)**g**\frac{r}{1000})}$

equation $(v)$

Note: $$ is in kilograms $\frac{?}{m^3}$;$$ is in Newtons$/$metre; $$ is in degrees; acceleration due to gravity, $g$ is $9\mathrm{.}81\frac{m}{s^2}$; tube radius, $r$ is in metres; and $h$ is in metres.

Tasks to be completed on Answer Sheet Qii:

Design the worksheet to solve for $,$ and $h.$ Only use $3$ values for $($i$.$e$.65,115$ and $135).$

$2$

In the relevant box, enter the Microsoft ${?}^{o+}$ Excel formula to calculate $$ and indicate which cell this formula will be entered into.

$[4]$

In the relevant box, enter the Microsoft ${?}^{}$ Excel formula to calculate $$ and indicate which cell this formula will be entered into. No unit conversions are necessary.

$[2]$

In the relevant box, enter the Microsoft ${?}^{o+}$ Excel formula to calculate $h$ given $r=0\mathrm{.}35mm$ and indicate which cell this formula will be entered into. No unit conversions are necessary.

$2$