A change in velocity means a change in?

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.

The discovery of the electron as a subatomic particle was a result of

Which type of energy would have nothing to do with ironing clothes? a. heat b. chemical c. electrical d. mechanical