Asubway train is traveling north at a speed of 35 km/h while a passenger walks south through the train at a speed of 2 km/h. from the passenger's frame of reference, how fast is she traveling in relation to the train?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

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.