Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.
Answers: 1
Physics, 23.06.2019 00:30
What is the relationship between globular clusters and the milky way?
Answers: 1
Physics, 23.06.2019 06:50
It's time for santa to deliver his presents. assuming he delivers presents all over the world, he has to travel about 75,000,000 miles. if he travels east to west, he can use the time zones to make christmas day last 31 hours. what speed, in miles per hour, must santa fly to get all of his presents delivered?
Answers: 1
Physics, 23.06.2019 11:00
What is reflection, what is refraction, and what is diffraction. what some similarities or differences between the three.
Answers: 2
Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that...
Mathematics, 04.10.2020 06:01
Mathematics, 04.10.2020 06:01
Physics, 04.10.2020 06:01
Mathematics, 04.10.2020 06:01
Mathematics, 04.10.2020 06:01
Mathematics, 04.10.2020 06:01
History, 04.10.2020 06:01
Physics, 04.10.2020 06:01
History, 04.10.2020 06:01