8. A soap box derby car wheel has a diameter of 2 feet. On its way down the hill, it reaches a top speed of 50 feet per second. At that moment, what is the angular speed (in radians
per second) of a point on the edge of the wheel?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?