Currently, it’s 10:00am and you are sitting in your desk at Troy Prep. School doesn’t get out until 4:25pm. A huge storm in New York City is moving at a speed of 25 km/hour. New York City is 150 miles south of Albany. Should you try to leave school early before the storm hits the school?

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm