A 13 cm radius air duct is used to replenish the air of a room 8.7m7.0m4.1m every 12 min .How fast does air flow in the duct?

A 0.78-kgkg piece of wood floats in water but is found to sink in alcohol (SG=0.79)(SG=0.79), in which it has an apparent mass of 0.082 kgkg. What is the SGSG of the wood?

Water and then oil (which don't mix) are poured into a UU-shaped tube, open at both ends. They come to equilibrium as shown in (Figure 1). Suppose that H= 26.7cmcmand h= 8.82cmcm.What is the density of the oil? [Hint: Pressures at points a and b are equal.]

Answer rating: 100% (QA)

1 Air flow in the duct Given Radius of the air duct r 13 cm Room dimensions 87 m x 70m x 41 m Time t... View the full answer