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A turboprop producing 1000 kW drives a propeller operating at 85% propulsive efficiency. If the fuel flow to the engine is 0.07 kg/s, determine the overall thermal efficiency of the engine.
A 14 nC point charge is at the center of a 1.6 m x 1.6 m x 1.6 m cube. What is the electric flux through the top surface of the cube
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.1 L in the warm store at 72 μF. Obtain by how much has the volume decreased
The angular velocity of a flywheel obeys the equation , where is in seconds and and are constants having numerical values 2.45 (for ) and 1.60 (for ). Part D What is the angular acceleration of the wheel at = 2.50 ? Part E Through what angle does ..
A roller coaster reaches the top of the steepest hill with a speed of 4.0 km/h. Estimate its speed when it reaches the bottom
A 70-kg climber is hanging by a rope off the edge of a cliff, with the top end of the rope tied to a 200-kg rock. However, the rock is sitting on an icy horizontal surface,
A 54.5-g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 21.0 m/s. what is the magnitude of the average acceleration of the ball during this time interval
when a pair of slits is illuminated by white light sometimes one orders rainbow will overlap with that of another
A Ball is thrown horizontally from the window of a building with an initial velocity of 12.1 mi/hr and lands 9.43 m from the base of the building. How far above the grown was the window
If the period of oscillation of an astronaut on a 3000-N/mspring is 1.0 s, what is the astronaut's mass
A child is sitting on the outer edge of a merry-go-round that is 18 m in diameter. If the merry-go-round makes 4.9 rev/min, what is the velocity of the child in m/s
The differential gear of an automobile axle allows the wheel on the left side of an automobile to rotate at a different angular speed than the wheel on the right side. Find the difference between the angular speeds of the wheels
An open train car, with a mass of 2030 kg, coasts along a horizontal track at the speed 2.45 m/s. What is the car\'s speed after the loading is completed
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