An observer is on top of a lighthouse. How far from the foot of the lighthouse is the horizon that the observer can see?
Use the computer to model an epidemic. Try out public health policies to control the spread of the epidemic, to minimise the number of sick days and deaths.
Are these estimates of physical quantities accurate?
The average dimension for each of the following objects is given in the table below:
Therefore, we can roughly rank these objects by length, volume and cross - sectional area.