[Solved] CSC322 Lab 4-Kangaroos

Kangaroos, native animals of Australia, are not known for their intelligence. In fact theyre pretty stupid.Only slightly smarter than sheep, and thats not saying much. In the outback kangaroos regularly jump ontothe road just when a car is coming along (especially at night, because the car headlights scare them).This makes a serious mess of your car, unless you have a roo-bar on the front. Sadly, many roos getkilled in these collisions. The Royal Automobile Club of Australia needs a computer program to calculatethe expected number of kills each year. This will be done for square parcels of land, each of which hasroads of known length running through.

The program needs to get the following information from the user:The length of the side of the square of land (in kilometers).The length of roads running through the square (in kilometers).The number of kangaroos living in that square.

The calulation of the expected number of kills has two phases. First, the kangaroo density has to becalculated this is the number of kangaroos per square kilometer. Second, the road surface area has to becalculated, using the average Australian road width which is 10 meters. These are multiplied with the wellknown roadkill probablility constant, which is 1.47.

Heres what a sample run should look like, with the keyboard input in italics

Enter side of square in km : 3.5Enter roads length in km : 10Enter number of roos : 150Expected number of kills is : 1.8

The program can be a single main function, or if youre feeling confident, use extra functions appropriately. (3%)

Scuba divers on shallow dives (up to about 90) put normal air in their tanks. For deeper dives divers use Nitrox(also known as EANx). Air has about 21% oxygen and 79% nitrogen, while Nitrox varies from 21% oxygen and 79% nitrogenthrough to 40% oxygen and 60% nitrogen. Using Nitrox allows you to stay down deeper for longer. However, when usingNitrox you have to take care not to use a mixture that is too strong, i.e., with a too high percentage of oxygen.This check is done using some simple mathematics:

Find out how deep the dive will be, in feet.Decide on a mixture, i.e., the percentage of oxygen in the gas.Compute the ambient pressure for the dive. To do this you need to know the feet per atmosphere constant, whichfor ocean diving is 33. The ambient pressure is then the depth divided by the feet per atmosphere constant, plus 1.Compute the partial pressure of oxygen for the dive, equal to the fraction of oxygen (percentage divided by 100) inthe gas multiplied by the ambient pressure. The recommended maximal partial pressure of oxygen is 1.4, and thecontingency maximal partial pressure of oxygen is 1.6. If the computed partial pressure of oxygen for the diveexceeds these, I know the mixture is too strong.

Additionally, compute an oxygen pressure group. The oxygen pressure group is an uppercase letter representing thepartial pressure of oxygen for the dive:

A represents a partial pressure of oxygen from 0.0 to less than 0.1,B represents a partial pressure of oxygen from 0.1 to less than 0.2,C represents a partial pressure of oxygen from 0.2 to less than 0.3, etc.

If the oxygen pressure group is N the diver is close to the oxygen pressure limit of 1.4, and if its a letterafter N the diver knows that the mixture is too strong.

Id like you to write a computer program to do these calculations:Youll have to get the depth and percentage oxygen in the gas as keyboard input both will be integers.The output must provide the ambient pressure for the dive, the partial pressure of oxygen for the dive, and theoxygen pressure group.Additionally, it must output true/false status values indicating whether or not the dive will exceed the recommendedmaximal and contingency maximal values for partial pressure of oxygen.Here is what a sample run should look like (with the keyboard input shown in italics):

Enter depth and percentage O2 : 99 36

Ambient pressure : 4.0O2 pressure : 1.44O2 group : O

Exceeds maximal O2 pressure : trueExceeds contingency O2 pressure : false