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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 4.72 x 105 N. In being launched from rest it moves through a distance of 40.3 m and has a kinetic energy of 5.19 x 107 J at lift-off. What is the work done on the jet by the catapult?
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, as measured by this tape on a day when the temperature is 5 (C), is 25.970m. What is the true distance between the points?
An 85-kg man stands 0.70 m from the center of a large, rotating turntable with a frictionless axis. What is the turntable's moment of inertia
During a particular process, the pressure of the gas in a heat engine increases from 1.15×105 Pa to 2.37×105 Pa, What is the work associated with the process
What is the magnitude of the acceleration of rock.
A 0.366-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 20.3 N/m. How far does the putty-block system compress the spring
Two tiny spheres have the same mass and carry charges of the same magnitude. The mass of each sphere is 5.04 10-6 kg. Determine the charge magnitude
A coil of inductance 110 mH and unknown resistance and a 1.4 ?F capacitor are connected in series with an alternating emf of frequency 980 Hz. what is the resistance of the coil
In discharging a capacitor what percentage of the initial potential remains after one time constant has passed? After two times constants? Three times constants
We place a 1 mole sample of an ideal monatomic gas in a cylinder with a piston and we heat the gas so it expands and performs work against the piston, How much heat does the gas absorb during the process
Water flows through a fire hose of diameter 7.09 cm at a rate of 1.2 x10-2 m3/s. What is the velocity with which the water exits the hose
A 8.85- g bullet from a 9-mm pistol has a velocity of 376.0 m/s. what was the velocity of the bullet as it emerged from the block
A 30 g steel ball bounces elastically on a steel plate, always returning to the same maximum height h = 14.2 m. With what speed does the ball leave the plate
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