Answered: A Boeing 787-9 jetliner has a mass of…

Name: A Boeing 787-9 jetliner has a mass of 245,000 kg in cluding passengers
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Description: A Boeing 787-9 jetliner has a mass of 245,000 kg in cluding passengers . Its two engines produce a combined thrust force of 642 kN , and the aircraft cruises at 913 km / h in level flight - in which case drag from the air is the only force the plane

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A Boeing 787-9 jetliner has a mass of 245,000 kg in cluding passengers . Its two engines produce a combined thrust force of 642 kN , and the aircraft cruises at 913 km / h in level flight - in which case drag from the air is the only force the plane needs to overcome . Find the engines ' power output ( a ) while cruising and ( b ) when it's climbing at a 23.0 ° angle at 622 km / h . Assume air resis tance doesn't change — although in reality it's greater at the higher speed .

47. Example 6.9: A Boeing 787-9 jetliner has a mass of 245,000 kg in-
cluding passengers. Its two engines produce a combined thrust force
of 642 kN, and the aircraft cruises at 913 km/h in level flight–in
which case drag from the air is the only force the plane needs to
overcome. Find the engines' power output (a) while cruising and (b)
when it's climbing at a 23.0° angle at 622 km/h. Assume air resis-
tance doesn’t change-although in reality it's greater at the higher
speed.
48. Example 6.9: You're an aircraft designer charged with determin-
ing the maximum speed for a new aircraft when it's climbing at
a 15.4° angle. The total mass of the plane is 138,000 kg, and its
total engine power is 105 MW. While climbing it encounters a
force of 193 kN from air resistance. What do you report for the
maximum speed while climbing?
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