Total # Posts: 17
We have a gate (3 meter long and 3 meter wide) at a 40o angle being held onto the slab by the pressure of the water with a hinge at the base. The distance z is 0.75 m. Assume that air at atmospheric pressure is above the water on the right hand side and on left hand side of ...
April 1, 2016
Heating 1-bromobutane with 2M NaOH -> Butan-1-ol + NaBr Acidification with 2M HNO3 Then Addition of 0.1 AgNO3 dropwise What is the equation here? Also why does the mix need to be acidic before adding AgNO3?
October 16, 2015
A curve is defined by the parametric equations: x = t2 t and y = t3 3t Find the coordinates of the point(s) on the curve for which the normal to the curve is parallel to the y-axis. You must use calculus and clearly show your working, including any derivatives ...
July 18, 2014
Rainflow is a new U- Shaped system of guttering. The cross section is a semi circle with a radius of x topped by an open rectangle of height h. The total distance ABC is 20cm For which values of x and h will rainflow carry the most water ?
August 19, 2013
a sheet of cardboard is to be folded up to make a closed box. If the cardboard measures 55 cm by 80cm calculate the maximum volume of the box that can be made from this sheet of cardboard
August 3, 2013