If the speed of an object decreases to one-half, what happens to its momentum?
a. it decreases to one fourth.
b. it doubles.
c. it remains the same.
d. it decreases to one half.

Explain what happens at the saturation point when adding salt to water at room temperature.

The substances that are necessary for producing of certain hormones and that store and transport vitamins

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.