Since there are 60 seconds in a minute and 60 minutes in an hour, there are 60*60 = 3600 seconds in an hour. The bus therefore takes 2*3600 = 7200 seconds to complete its journey. 80km = 80 000m, so the bus travels 80 000m in 7200 seconds and 80000/7200 = 11.1 m/s (1dp).

IBM's Deep Blue won a chess game against Garry Kasparov in 1996, although Kasparov went on to win the match. The next year, an improved version of Deep Blue won 3.5 - 2.5 in a rematch, although IBM have been accused of cheating through human intervention. The fact that they subsequently dismantled the machine and … Read more

First rearrange the first equation: X - y = 9 => y = 9-x Then substitute into the quadratic: X^2 + y^2 = x^2 + (9-x)^2 = x^2 + (9-x)(9-x) = x^2 + 81 -18x + x^2 = 2x^2 -18x + 81 = 99 Now solve for x, calculate y and then you can calculate … Read more

They are both empircal sciences, insofar as they take an evidence-based approach to testing theories. Since studying physics requires a thorough grounding in advanced mathematics, it is certainly not uncommon for Physicists to later study economics or go into banking. I personally know several people who have taken this route.

The function of a modern Operating System is to allocate resources such as CPU time, Memory and Disk Space between processes running on the system, abstracting away from the underlying hardware of the system and allowing several processes to run simultaneously (multiprogramming). Exactly how this is achieved can vary largely between different operating systems and … Read more

In mathematics there are esentially two types of sets - those that are countable and those that are uncountable. A set is said to be countable if and only if its members can be put into one and one correspondance with a subset of the natural numbers. Note that many sets that are infinite are … Read more

Bis Später.