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A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 4.83 x 105 N. In being launched from rest it moves through a distance of 53.8 m and has a kinetic energy of 8.71 x 107 J at lift-off. What is the work done on the jet by the catapult?
A 73.0-kg parachutist falling vertically at a speed of 6.60m/s impacts the ground, what is the average force exerted on the parachutist by the ground
Calculate the ratio of the drag force on a jet flying at 1140 km/h at an altitude of 10 km to the drag force on a prop-driven transport flying at half that speed and altitude.
Illustrate what is the magnitude of the apparent weight of a 78kg astronaut 5200km from the center of the Earth's moon in a space vehicle moving at constant velocity?
Two blocks of mass m are suspended vertically as shown (one block by a spring, the other block to the first by a string), and initially motionless. An instant after the string is cut:
Initially, the translational rms speed of a molecule of an ideal gas is 464 m/s. find the final translational rms speed of the molecules
Calculate the speed of block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across capacitor after the dielectric is removed is measured to be 200 V.
question1what is speed of a car going v 1mph in si units? observe that you will require changing from miles to meters
A spherical mirror is to be used to form a real image of an object that is located 5 meters from the object. What type of mirror needs to be used
A glass sheet measuring 10cm X 25cm is covered by a very thin opaque coating. In the middle of this sheet is a thin, What is the wavelength of the light in air
A passenger walks from one side of a ferry to the other as it approaches a dock.Passenger's velocity is 1.50 m/s due north relative to the ferry, What is the magnitude and direction of the ferry's velocity relative to the water
A flywheel of mass 185 kg has an effective radius of 0.62 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel)
Find the de Broglie wavelength ? for an electron moving at a speed of 1.00×106m/s. Find the de Broglie wavelength of a baseball pitched at a speed of 40.5m/s
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