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In the figure below, the hanging object has a mass of m1 = 0.480 kg; the sliding block has a mass of m2 = 0.770 kg; and the pulley is a hollow cylinder with a mass of M = 0.350 kg, an inner radius of R1 = 0.020 0 m, and an outer radius of R2 = 0.030 0 m. Assume the mass of the spokes is negligible. The coefficient of kinetic friction between the block and the horizontal surface is ?k = 0.250. The pulley turns without friction on its axle. The light cord does not stretch and does not slip on the pulley. The block has a velocity of vi = 0.820 m/s toward the pulley when it passes a reference point on the table. (a) Use energy methods to predict its speed after it has moved to a second point, 0.700 m away. m/s (b) Find the angular speed of the pulley at the same moment. rad/s
An electron is observed moving 50 percent of the speed of light, v = 1.5 *10^8m/s. What is the relativistic mass of the electrong
The path of a charged particle moving parallel to a uniform magnetic field will be:
A 4.00 kg mass is connected to a spring with a spring constant of 9.00 N/m. find the maximum acceleration of the simple harmonic motion
If a 68.3 kg person were travelling at 0.960c (where c is the speed of light), what would be the ratio of the person's actual kinetic energy to the person's classical kinetic energy
A room has dimensions 2.98 m (height) × 4.59 m × 6.03 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. What is the magnitude of its displacement
It is desired to construct a solenoid that will have a resistance of5.20(at 20°C) and produce a magnetic field of 4.00multiplied by10-2T at its center when it carries a current of3.40A. determine the length the solenoid should have
the 25g bullet travelling at 350m/s strikes a block of wood. The block of wood exerts an average force of 50,000N opposing the motion of the bullet. How far does the bullet penetrate while stopping.
An astronaut is traveling in a space vehicle that has a speed of 0.515c relative to Earth. The astronaut measures his pulse rate at 69.0 per minute. What pulse rate does the Earth observer measure
A 2-2-2 kinematic coupling uses 19-mm silicon nitride balls and tungsten carbide vees. Determine the Hertz contact stresses for a 50 N coupling load. Is this kinematic coupling overloaded? Where are the locations of maximum compressive, shear and ten..
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3.3 kg and radius R = 0.22 m. The rods each have mass mr = 1.2 kg and length L = 0.76 m. 1) What is the moment of inertia of each rod a..
A point source of light illuminates an aperture 1.90 away. A 11.5 -wide bright patch of light appears on a screen 1.40 behind the aperture. How wide is the aperture
7.03 g of phosphorus reacts with bromine to form 61.39g of phosphorus tribromide, How many grams of bromine reacted in this reaction
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