Arod of length l and mass m rotates about an axis through its center (1 = ml) with angular velocity oa. a second rod with the same length and mass rotates about an axis through an endpoint (1 = ml) with angular velocity 03. they have the same rotational kinetic energy. which of the following is true? a) oa=0.250b c) oa = 2.00b b) oa = 0.500b d) oa = 4.00b

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.

Apropagating wave in space with electric and magnetic components. these components oscillate at right angles to each other. it may travel in a vacuum. determine the term.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m