If you push down on a piston in a fluid, what happens? a) the pressure increases in the fluid near the place where you pushed. b) the pressure is absorbed by the fluid and does not increase c) the pressure increases in the far corners of the container d) the pressure increases uniformly throughout the fluid.

What is the most useful equation for electric power?

Atomic nuclei of almost all elements consist of

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.