two mercury manometers, one open-end and the other sealed-end, are attached to an air duct. the reading on the open-end manometer is 25 mm and that on the sealed-end manometer is 800 mm. determine the absolute pressure in the duct, the gauge pressure in the duct, and the

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

B. nuclear reactions could first occur.

Convection is da answer my dood