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A jet-propelled airplane with a mass of 10 Mg is flying horizontally at a constant speed of 1000 km/h under the action of the engine thrust T and the equal and opposite air resistance R. The pilot ignites two rocket-assist units, each of which develops a forward thrust T0 of 8 kN for 9 s. If the velocity of the airplane in its horizontal flight is 1050 km/h at the end of the 9 s, calculate the timeaverage increase ?R in air resistance. The mass of the rocket fuel used is negligible compared with that of the airplane.
Determination of the open-loop system
40-m long section of a horizontal steam pipe of 6-cm in outside diameter has a surface temperature of 170c and
Determine the longitudinal normal strain ε at the top surface of the strip.
consider a well 12 inches in diameter. there are 1000 feet of 10x4 inch collars and 9000 feet of 5x4.26 inch drill
What is the maximum allowable pressure if a factor of safety of 4 is to be used and what pressure would a strain of 40 pc indicate?
a tank of compressed air is at 40 degrees c and 10 atm. 1 third of the gas is removed for inflating a car tire. the
The discharge of water through this turbine is 1000 cfs. What power is generated if the turbine efficiency is 85% and the total head loss is 4 ft? Also, carefully sketch the EGL and the HGL.
gold foil is 0.08 mm thick and 670mm2 in area. a it is cubic with a0.4076nm. how many unit cells are there in the foil?
at steady state. a power cycle generates 100 mw of electricity while discharging energy by heat transfer at a rate of
What is the magnitude of the friction force between the ramp and the cylindrical disk?
An iceberg with specific gravity (SGice) of 0.92 is partially submerged in seawater whose specific gravity is SGw= 1.025. Determine the relative volume of the iceberg that appears above the surface of the sea.
This activity will involve researching a concept or component related to the turbine engine lubrication system. The concept can be on the different types of synthetic oils used in turbine engines or an explanation of oil analysis. It can be on a c..
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