A roller coaster car has a mass of 900 kg and is traveling through a vertical loop of radius 60 m. What is the minimum speed to just maintain contact with the track at the inside of the top of the loop?

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.

Explain why you think this diagram shows what happened to the carbon in the biodome.