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In order to shorten the distance required for landing, a jet airplane is equipped with moveable vanes which partially reverse the direction of the air discharged by each of its engines. Each engine scoops in the air at a rate of 120 kg/s and discharges it with a velocity of 600 m/s relative to the engine. At an instant when the speed of the airplane is 270 km/h, determine the reverse thrust provided by each of theengines.
A person pushes the shopping cart with a force of 100 N acting down at 45 degrees. Of the cart travelled at a constant speed of 1.00 meters per second what is the value of combined retarding force acting horizontally on the cart due to friction an..
A cargo plane in flight lost a package because somebody forgot to close the rear cargo doors. You are on the team of safety experts trying to analyze what happened, Calculate the time at which the package fell off the back ramp
Find out the potential difference between a point.
Assume two liquids in an open U shaped tube
an object is hanging by a string from the ceiling of an elevator. the elevator is moving upward with a constant speed.
What is effectiveness of battery as an energy storage device
A 1.3-µF capacitor is connected to a 4.7-V battery. What is the magnitude of the charge on each plate?
An engine with reservoir temperatures of 387 K and 725 K operates at half the efficiency of a Carnot engine. If the hot reservoir supplies the engine 4670 J of heat energy during each cycle, how much net work does the engine do in a cycle?
A circular disk of radius 0.010 m rotates with a constant angular speed of 5.0 rev/s. What is the acceleration of a point on the edge of the disk
In a particluar x-ray tube, an electron approaches the target moving at 1.95 ? 108 m/s. compute the final speed of the electron
If no, then what will happen if 30 kilocalories of heat is added to the water? Give a numerical result as part of your answer.
The two angled are used to support the crate. The tension in the ropes can have any value up to 1500 N. What is the largest mass the rope can support
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