Engineering, 05.05.2021 20:10 Ezasha
The Air Force is testing a new fighter at Area 51. It can propel the 23368kg fighter with a force of 186197N, and the force of friction between the ground and the fighter is 925154N. The Air Force wants to get their fighter up to its take-off speed of Mach 1.2 (1.2 times the speed of sound) and then stop using the normal brakes on the plane. How long of a runway do they need to build?
Answers: 3
Engineering, 03.07.2019 15:10, EmilySerna
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10, viicborella
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
Answers: 1
Engineering, 04.07.2019 18:10, skpdancer1605
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
The Air Force is testing a new fighter at Area 51. It can propel the 23368kg fighter with a force of...
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