6 questions to be answered

Review | Constants | Periodic 1 Swimmers compete in a 1.50-km freestyle Part A distance. The fastest swimmer in the pool has a steady speed of 1.34 m/s, and the slowest swimmer has a steady speed of 1.23 m/s. What is the time interval between the finishes of the fastest and the slowest swimmers? Express your answer in minutes to three significant figures. IVO AEd At = min Submit Request Answer I Review | Constants | Periodic Table Part A A bicycle race on a velodrome has a total length of 15.0 km. The race leader rides at a constant speed of 44.0 km/h. The slowest bicyclist has a steady Determine the distance from the slowest bicyclist to the finish line at the moment of the leader's finish. speed of 41.0 km/h. Express your answer in kilometers to three nificant figures. Ad = km In Review | Constants | Periodic Table In college softball, the distance from the pitcher's Part A mound to the batter is 43 feet. pitcher? If the ball leaves the bat at 110 mph , how much time elapses between the hit and the ball reaching the Express your answer with the appropriate units. Value Units Richard is driving home to visit his parents. 145 Part A mi of the trip are on the interstate highway where the speed limit is 65 mph . Normally Richard drives at the speed limit, but today he is running How many minutes does he save? late and decides to take his chances by driving at 76 mph . Express your answer in minutes to two significant figures. AEd At = min Review | Constants | Perios 0 9 m/s (Figure 1) shows actual data from Usain Bolt's 2009 world-record run in the 100 m sprint. O 14 m/s O 12 m/s 16 m/s Submit Request Answer Part B Figure From this graph, estimate his top speed in mph. Select the correct answer. x (m) O 20 mph 100- O 27 mph 80- 60- O 36 mph 40- O 31 mph 20 10 ($) Submit Request Answer Review | Constants | Periodic Table If she maintains her speed, how much time will it take her to run the next 400 m ? Express your answer with the appropriate units. While running a marathon, a long-dis 100 m. She finds that she runs this diet distance of S . Answer the following without computing her velocity. t= Value Units Submit Request Answer Part B How long will it take her to run a mile at this speed? Express your answer in seconds, Submit Bequest