Completely confusing Probability?
Five firms, f1,f2,f3,f4,f4, each offer bids on three seperate contracts (c1,c2,c3). Any one of the firms will be awarded at most one contract. The contracts are quite different, so an assignment of c1 to f1 is to be distinguished from an assignment of c2 to f1. A) How many sample points are there altogether in this experiment involving assignment of contracts to the firm? B) Under the assumption of equally likely sample points, find the probability that f3 is awarded a contract. *I need to understand how to get these answers*
The Great Tri-State Tornado?
HI Gabe, Using pictures from various sources and also climo data scrapped up from the period, I would say that it would be an F-5. Due to the primitive nature of the equipment and the knowledge of vortex theory back then, it is almost impossible to peg a determinate FS index to it. However, what I could do is realize that the tornado(s) caused extensive damage, had a long track, and was part of a supercell due to the outbreak that occured March 18, 1925. So my answer is an F-5 storm, based strictly upon forensic Climo data that I gathered from the history books. Take care, and I hope I have helped!
What is more dangerous? Category 5 hurricane or F5 tornado. Hurrican Katrina vs Moore F5?
Hurricanes are much larger and last longer but are detected days if not weeks in advance so people have a chance to get to safety. Tornados only last a few minutes to a an hour and are much smaller but usually have only minutes warning before it strikes. Some have windspeeds of 300+ mph. What do you think is worse?
Why do the winds in a tornado reach such high speeds?
The speed of the winds in a tornado is a direct result of the pressure difference between the vortex and the surrounding air mass. Since a tornado is a VERY localized phenomenon, the pressure gradient can be very steep, the steeper the faster the winds around the vortex. In the case of tornado's, the more stable the surrounding air the more stable the vortex can be and thus can be a self contained system. Being contained like that the scale of the tornado can increase if the situation is right, thus even faster winds. Logical Proof: Small tornado's (F1 or F2) are relatively short lived, and thus have fairly short lives. Medium tornado's usually start of as smaller tornado and grow in severity moving into F3 or F4's. These tornado's last longer, becoming more mature systems and building wind speeds. The largest tornado's can last many hours and have the most maturity, stability, and highest wind speed. These F5's (or higher, the Fujita scale goes higher) have really worked themselves up and have had time to do it.