24 !
in hooke's law f spring = k (triangle) x , what does the (triangle) x stand for?
a. the constant of gravity
b. the distance the spring stretches
c. the elastic constant, a number that tells the relative strength of the spring.
d. the amount of force acting on the spring.

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?