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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?
Two disks are mounted on frictionless bearings on the same axle and can be brought together so that they couple and rotate as one unit. what is the angular speed after coupling
A ray of sunlight hits a frozen lake at a 43.9° angle of incidence. At what angle of refraction does the ray penetrate the ice
1 kilograms of water are changed from liquid water at 100°C into steam at 100°C. For each situation, determine the change in mass of the water
A capacitor has a capacitance of 250 nF and a voltage is placed across it which grows as a function of time as: V(t) = 240 mV/s3 × t3
Two positive charges of 1.7e-10 C are placed on the x axis at distances +20 cm and -20 cm from the origin, respectively. A third positive charge of 1.5e-11 C can be moved along the y axis. At what value of y the electrostatic force on the third charg..
Four equal positive point charges, each of charge -14 C , are at the corners of a square of side 12cm.What charge should be placed at the center of the square so that all charges are at equilibrium? Solve using only Biot-Savart and maxwell's equation..
A gas is allowed to expand isothermally until it reaches its final volume and its pressure is 2.97 atm. Find the heat absorbed by the gas during this process
A sledge loaded with bricks has a total mass of 17.1kg and its is pulled at constant speed by a rope inclined at 20.0 degrees above the horizontal. the sledge moves a distance of 20.8 m on a horizontal surface. The coefficient of kinetic friction ..
A rocket-powered hockey puck has a thrust of 1.00 N and a total mass of 2.10 kg. How far does the puck land from the base of the table
A 50 g ball is fired horizontally with initial speed v_0 toward a 110g ball that is hanging motionless from a 1.10 m-long string. The balls undergo a head-on, perfectly elastic collision, after which the 110g ball swings out to a maximum angle the..
If 5.0 moles of air is at 0.0 degrees Celsius and 1.0 atm pressure, what is the volume occupied by the gas in m^3
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, What is the age of a piece of solidified lava
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