An oil storage tank ruptures at time t = 0 and oil leaks from the tank at a rate of r(t) = 115e−0.02t liters per minute. how much oil leaks out during the first hour? (round your answer to the nearest liter.)

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.