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In the figure, two masses, each 24 kg, are at rest and connected by the pulley. the pulley is massless and frictionless. Use Energy and work to find. a) the speed of the masses after thay have moved 1.6 m assumming the surface is frictionless. b)the speed of the masses after they moved 1.6 m assumming the coefficient of kinetic friction between the inclined surface and the mass is 0.31. Angle is 30 degree.
Suppose an ideal monatomic gas at an initial temperature of 475 K is compressed from 3.20 L to 2.15 L while its pressure remains constant at 1.01 105 Pa. Find the work done on the gas.
The coefficient of static friction between the wall and the rod is μs = 0.575. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
A 3.1kg block of wood sits on a table. A 3.0g bullet, fired horizontally at a speed of 370m/s, What is the speed of the block immediately after the bullet exits
A 1225 kg automobile starts from rest on a horizontal road and gains a speed of 83 km/h in 38 s. What is the average power required of the car during the 38 s interval
An unmarked police car travelling a constant 85 km/h is passed by a speeder travelling 145km/h. Precisely 1s after the speeder passes, police officer steps on the accelerator.
A patient is having a magnetic resonance imaging scan (an MRI) and has neglected to remove a 5.7 cm diameter metallic bracelet. find the magnitude of the average induced current in the bracelet
The position of a particle is given in cm by x = (7) cos 4pt, where t is in seconds. Find the maximum acceleration of the particle
A ball moving at 5ms collides head on elastically with a ball at rest. what are the velocities of the two balls after the collision
Determine the magnitude and direction of the force on a horizontal conductor 10cm long and carrying 25 amperes of current from south to north, if places in air in a horizontal magnetic field of flux density .8 w/m2 directed from east to west.
A rotten pumpkin of mass 2.44 kg is dropped from a height of 2-m above the ground. Ignore air friction. Let the positive y-axis point down. How much momentum will the pumpkin have
A key falls from a bridge that is 49 m above the water. It falls directly into a model boat, moving with constant velocity , What is the speed of the boat
A pendulum consisting of a small sphere with mass 1.135 kg suspended by a string of length 72.23 cm is hanging from the ceiling. Its motion is restricted by a peg that is sticking out of the wall 43.03 cm directly below the pivot point. What is the p..
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