A firefighter mounts the nozzle of his fire hose a distance 32.1 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. After quenching a hotspot at a height of 9.33 m, the firefighter adjusts the nozzle diameter so that the water hits the building at a height of 17.5 m. By what factor was the nozzle diameter changed? Assume that the flow rate of water through the hose stays the same, and treat the water as an ideal fluid.

A firefighter mounts the nozzle of his fire hose a distance 32.1 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. After quenching a hotspot at a height of 9.33 m, the firefighter adjusts the nozzle diameter so that the water hits the building at a height of 17.5 m. By what factor was the nozzle diameter changed? Assume that the flow rate of water through the hose stays the same, and treat the water as an ideal fluid.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter15: Fluids

Section: Chapter Questions

Problem 47PQ

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