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you are a fighter pilot in your jet. you are moving at 1000 km/h when you go into a climb in order to avoid a HUGE UFO. Your climbing path is a circular arc and you continue to move at 1000 km/h. At the position shown you find that you feel just barely weightless-that is, your behind just quits pressing down against the seat and you momentarily fell weightless. Whats the radius of the circular arc?
A car accelerates from rest to a kinetic energy of 1.65 x 10^5 Joules in a distance of 646 m. How much force did the car's engine deliver to produce the change in kinetic energy.
Find out the height from which you would have to drop a ball so that it would have a speed of 9.7 m/s just before it hits the ground.
A point charge of -12 micro-coulombs is fired directly towards a single infinite sheet of charge. It is initially moving at 3.4 m/s towards the sheet and after it has traveled 0.7 meters it is moving at 18.4 m/s.
A 15-kg iron ball is dropped onto a pavement from a height of 80m. Suppose half of the heat generated goes into warming the ball. What is the temperature increase of the ball in degree C
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm, Calculate the electric field between the plates and Calculate the capacitance
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
A hot air heating system rated at 84,000 Btu/hr has an efficiency of 65%. The furnace fan can move 225 ft3 of air per minute. If the air enters the furnace at 60.0°F, determine the temperature of the outlet air.
Intense white light is incident on a diffraction grating that has 720 lines/mm. What is the angular separation between the violet edge (400 nm) and the red edge (700 nm) of the first order spectrum produced by the grating
A highly charged piece of metal (with uniform potential throughout) tends to spark at places where the radius of curvature is small, For that amount of charge, what is the potential of the sphere relative to infinity
Three capacitors, C1, C2 = 2C1 and C3 = 3C1 are connected in parallel to a voltage source of value V. What is the voltage across each capacitor when all three switches are closed
Two identical positive charges exert a repulsive force of 6.2 multiplied by 10-9 N when separated by a distance of 3.4 multiplied by 10-10 m. Calculate the charge of each.
A Cadillac of mass2240 kg going east collides with a Geo of mass1250 kg headed north at 25 km/h on a level highway. How fast was the Cadillac moving before the collision
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