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A block of mass 3.41 kg is attached to a spring (k=31.9 N/m) by a rope that hangs over a pulley of mass M=6.82 kg and radius R=3.61 cm. Treating the pulley as a solid homogeneous disk, neglecting friction at the axle of the pulley, and assuming the system starts from rest with the spring at its natural length, find the speed of the block after it falls 1.00 m, and find the maximum extension of the spring.
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
A 24 GeV proton in cosmic radiation moves in Earth's magnetic field B, with a velocity v perpendicular to B, What is the radius of the proton's curved path in that region
When she reaches the bus, explain how fast is the bus traveling? If the student's top speed is 2.20m/s^2 , will she catch the bus? What is the minimum speed the student must have to just catch up with the bus?
The mass has a kinetic energy of 17.0 J as it passes through its equilibrium position (the point at which the spring force is zero). At what rate is the spring doing work on the mass
A 75-kg man is riding in a 75-kg cart at 1.0 m/s. He jumps off in such a way as to land on the ground with no horizontal velocity
An ideal spring with a spring constant of 16 N/m is suspended vertically. What is the extension of the spring when the speed is a maximum
A hollow non-conducting spherical shell has inner radius R1 = 8 cm and outer radius R2 = 15 cm. a) Write an equation for the radial electric field in the region r
A 65 kg man in a 5.9 kg chair tilts back so that all his weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area of radius 0.9 cm.
A body of mass 5kg is moved along a straight line and its displacement (x) varies with time(t) according to the relation : t= [(x)^(1/2) ] +1 Find the work done in moving the body for first 10 seconds
Lithium hydride, 7LiH, is a potential fuel for fusion reactors because it is one of the few compounds of very light elements that exists as a solid, and is therefore more dense than gaseous fuels even under extreme conditions
The tires of a car make 51 revolutions as the car reduces its speed uniformly from 95km/h to 38km/h. What was the angular acceleration of the tires
A pressure gage located 1 m off the bottom in 10 m depth of water measures an average maximum pressure of 10 N/cm2 having an average period of 9 sec
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