A1840-kg car travels on a banked, horizontal curve of diameter 225 m. find the maximum safe speed if the coefficient of friction between the tires and the road is 0.90 and the banking angle is 6.0°. additionally, what net force does the car experience in this case?

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.