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Light enters a container of benzene at an angle of 43^\circto the normal; the refracted beammakes an angle of 27^\circ with the normal. Calculate the index of refraction of benzene.
A suitcase weighing 228N is at rest on the floor of a hotel lobby. The co-efficient of static friction between the suitcase and the floor is 0.49, and the coefficient of kinetic friction is 0.313. With what least amount horizontal force must a bel..
The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Find out the maximum speed the stone can attain without breaking the string.
Two wires are identical, except that one is aluminum and one is nichrome. The aluminum wire has a resistance of 0.16 . What is the resistance of the nichrome wire
A wave on a string is described by the equation y = (4.2 mm)cos(3000t 0.45x) where t is measured in s and x is measured in mm
A coin placed 29.0 cm from the center of a rotating, horizontal turntable slips when its speed is 50.2 cm/s, What is the coefficient of static friction between coin and turntable
Two metal spheres are separated by a distance of 0.8 cm and a power supply maintains a constant potential difference of 770 V between them. what is the distance between the spheres at this time
A simple pendulum consists of a ball connected to one end of athin brass wire. The period of the pendulum is 1.81 s. obtain the change in the period of the heated pendulum
Suppose that a block of mass m = 9.0 kg moving with speed V is behind a block of mass M = 27 kg and speed of 0.5 m/s, How much kinetic energy of the blocks is lost due to the collision
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
A shot-putter accelerates a 7.3 kg shot from rest to 14 m/s. If this motion takes 2.0 s, what average power was developed
In an emergency, you need to run a radio that uses 39.3 W of power when attached to a 16.0 V power supply, how many series resistors should you use
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of the water while a large ball requires a lot of force. calculate the diameter of the ball
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