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For an oscillating air-track glider , the force constant of the spring is k=200N/m and the glider mass is m=0.50kg. Now let's find the angular frequency, frequency, and period of the glider's motion. Suppose we could "tune" this system by varying the mass. What mass would be required for a period of 2.0 s ?
Watch this clip about the violent portrayal of men in American media. Do you think that the aggressive and violent ways in which men are portrayed in the media make it more socially acceptable for men to be violent with family members? Does it enc..
The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When the pickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil.
A physics professor requires reading glasses with +2.00 D power toread a book held 40.0 cm away with a relaxed eye. Assume theglasses are 2.00 cm in front of his eyes.
A two-slit interference experiment is set up, and the fringes are displayed on a screen. How does the fringe pattern change
A flywheel is rotating at 1950 rpm when a brake is applied for 3.72 s. If the magnitude of the angular acceleration is 4.81 rad/s2, obtain the final angular velocity in rpm
A 150-lb fireman is holding a hose which has a nozzle diameter of 1 inch and hose diameter of 2 inches. If the velocity of the water at discharge is 60 ft/s - determine the resultant normal and frictional force acting on the man's feet at the grou..
A thin lens made with crown glass ( n=1.55) has a focal length of 10.0 cm. An identical lens with flint glass (n=1.65) was made. What would be the focal lens of flint glass lens?
stiff wire bent into a semicircle of radius a is rotated at constant frequency f in a uniform magnetic field B, What is the amplitude of the emf
The coefficient of kinetic friction between the floor and a block is 0.25. compute how far can it be pushed across the level floor with 710 Joule of work
An "energy bar" contains 18g of carbohydrates. If the energy bar was his only fuel, how far could a 68kg person walk at 5km/hr
You want to siphon rainwater and melted snow from the cover of an above-ground swimming pool. The cover is 1.8 m above the ground. You have a plastic hose of 1.0 cm radius with one end in the water on the pool cover and the other end on the ground..
An 80 centimeter long wire is made by welding a 2.30 mm diameter, 20 centimeter long copper wire to a 2.30 mm diameter, 60 centimeter long iron wire. Determine the resistance of the composite wire in milliohm
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