A room has a volume of 108 m³. An air-conditioning system is to replace the air in this room every 79.3 minutes, using ducts that have a square cross section. Assuming that air can be treated as an incompressible fluid, find the length of a side of the square if the air speed within the ducts is (a) 3.00 m/s and (b) 5.00 m/s. (a) Number i (b) Number i Units Units

An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter3: Force And Motion
Section: Chapter Questions
Problem 11MC: A childs toy floats in a swimming pool. The buoyant force exerted on the toy depends on the volume...
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A room has a volume of 108 m³. An air-conditioning system is to replace the air in this room every 79.3 minutes, using ducts that have a
square cross section. Assuming that air can be treated as an incompressible fluid, find the length of a side of the square if the air speed
within the ducts is (a) 3.00 m/s and (b) 5.00 m/s.
(a) Number i
(b) Number i
Units
Units
Transcribed Image Text:A room has a volume of 108 m³. An air-conditioning system is to replace the air in this room every 79.3 minutes, using ducts that have a square cross section. Assuming that air can be treated as an incompressible fluid, find the length of a side of the square if the air speed within the ducts is (a) 3.00 m/s and (b) 5.00 m/s. (a) Number i (b) Number i Units Units
The density of ice is 917 kg/m³, and the density of sea water is 1025 kg/m³. A swimming polar bear climbs onto a piece of floating ice
that has a volume of 6.07 m³. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the
water?
Number i
Units
Transcribed Image Text:The density of ice is 917 kg/m³, and the density of sea water is 1025 kg/m³. A swimming polar bear climbs onto a piece of floating ice that has a volume of 6.07 m³. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water? Number i Units
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