At constant pressure, the volume of a fixed mass of gas and its kelvin temperature are said to be
a. directly related.
b. inversely related.
c. unrelated.
d. constant.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

The two required components for a generator are

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?