atms 120 challenge problem 3

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ATMS 120: Online Snodgrass Name and NetID: _________________________ Part #1: Evacuation You are the director of Emergency Management for the Florida Keys. It is summer 20 "urricane #oa$uin %&ah'KEEN() is a**roaching the island chain from the south&est at miles+hour. ,he eye of the storm is *redicted to s&ee* along the northern edge of t chain) stri-ing Key est first and then destroying each island in succession until Key /argo. ,here is one t&o'lane road that connects each of the -eys to the mainlan hurricane emergency) the south ound lane must remain o*en for emergency 1ehicles) s lane is o*en for e1acuation. In the summer) 00)000 *eo*le li1e along the Keys. a on the ridge that connects all of the islands to the mainland suggests emergencies) ty*ically hold three *eo*le) mo1e no faster than ! miles+hour and main s*acing of a out one car length. Your goal as director is to order the evacuation early enoug so that all of the residents will make it to the mainland by the time the Hurricane s Key West. Question: How far (miles) must the hurricane be from Key West when you order the evacuation? (Assume the average car is ! feet in length.) YOU MUST SHOW YOUR WORK! (Hint: I a t"ese eo e i e into t"eir cars to evacuate$ ca cu ate "o% on& ta'e or t"e ast car in a i& ine o cars ta'es to &et ro) Ke* West to Ke* +ar&o, " m#h

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Hurricanes. ATMS 120. UIUC. Challenge Problem

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Name: ________________________

ATMS 120: Online

Snodgrass

Name and NetID: _________________________

Part #1: Evacuation

You are the director of Emergency Management for the Florida Keys. It is summer 2015 and Hurricane Joaquin (wah-KEEN), is approaching the island chain from the southwest at 12 miles/hour. The eye of the storm is predicted to sweep along the northern edge of the island chain, striking Key West first and then destroying each island in succession until ending up in Key Largo. There is one two-lane road that connects each of the keys to the mainland. During a hurricane emergency, the southbound lane must remain open for emergency vehicles, so only one lane is open for evacuation. In the summer, 100,000 people live along the Keys. Past data taken on the bridge that connects all of the islands to the mainland suggests that cars, during emergencies, typically hold three people, move no faster than 5 miles/hour and maintain a spacing of about one car length. Your goal as director is to order the evacuation early enough so that all of the residents will make it to the mainland by the time the Hurricane strikes Key West.Question: How far (miles) must the hurricane be from Key West when you order the evacuation? (Assume the average car is 15 feet in length.) YOU MUST SHOW YOUR WORK! (Hint: If all these people pile into their cars to evacuate, calculate how long it will take for the last car in a big line of cars takes to get from Key West to Key Largo.)Part #2: Questions on Hurricane Joaquin.

A reconnaissance flight performed by the hurricane hunter found that the winds in Hurricane Joaquin were 30 mph at a distance of 40 miles from the center of the hurricane. The satellite image below showed that the diameter of Hurricane Joaquins eye was 20 miles. Using this information, along with the example provided in the textbook on page 460 in Fig. 24.22, find how fast the winds were in Joaquins eyewall.

If it was July 10 when Hurricane Joaquin hit the Florida Keys, would you rank this hurricane season as below average, average or above average with respect to the number of named tropical cyclones?Now that you have found Joaquins fastest winds, what is Joaquins rank on the Saffir-Simpson Scale? (Circle one). Use Table 24.3 on page 440.Category 1Category 2

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In what direction are the winds around Joaquin circulating? Clockwise or Counterclockwise.12 mph