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A highway curve with radius 850 is to be banked so that a car traveling 52.0 will not skid sideways even in the absence of friction.
At what angle should the curve be banked?
By holding a magnifying glass 35cm from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.8m from the lamp
An electron has an initial velocity of 1.00 ? 106 m/s in a uniform 9.00 ? 105 N/C strength electric field. How long does it take the electron to come to rest
An object of mass m attached to a spring of force constant k oscillates with simple harmonic motion. What is the object's velocity when its potential energy is 2/3 E
Dinah is playing cards with her friends and it is her turn to deal. A card has a mass of 2.3 g and it slides 0.35 m along the table before it stops. If the coefficient of kinetic friction between the card and the table is 0.24 what was the init..
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.19 m. find the magnitude of the initial acceleration of the third sphere
A copper wire has radius r = 0.424 cm, is 6.00 m long, has resistivity ? = 1.72·10-8 ? m, What is the electric field, E, in the wire
The original Ferris wheel, built by George Ferris, had a radius of 38 m and a mass of 1.9 X 106 kg. What force exerted on the rim of the wheel would have given such a torque
For a huge luxury liner to move with constant velocity, its engines need to supply a forward thrust of 7.05 105 N. What is the magnitude of the resistive force
A heat engine operates in a Carnot cycle between reservoirs of temperatures 1000K and 400K. What is the work output per cycle
Two tug boats are towing a ship. Each exerts a horizontal force of 5 tons, What net force is exerted on the ship
A 0.230- coffee cup at 19 is filled with 0.240 of brewed coffee at 97. The cup and the coffee come to thermal equilibrium at 79.If no heat is lost to the environment, what is specific heat of the cup material.
A major leaguer hits a baseball so that it leaves the bat at a speed of 28.0m/s and at an angle of 34.6? above the horizontal. What is the direction of the baseball's velocity when it returns to the level at which it left the bat
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