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A horizontal spring-mass system has low friction, spring stiffness 200 N/m, and mass 0.4 kg. The system is released with an initial compression of the spring of 11 cm and an initial speed of the mass of 3 m/s. (a) What is the maximum stretch during the motion? m (b) What is the maximum speed during the motion? m/s (c) Now suppose that there is energy dissipation of 0.03 J per cycle of the spring-mass system. What is the average power input in watts required to maintain a steady oscillation? watt
An alpha particle travels at a velocity of magnitude 420 m/s through a uniform magnetic field of magnitude 0.061 T. compute the magnitude of the acceleration of the particle
A worker pushes a sled with a force of 50 N over a level distance of 7.0 m. what net work is done on the sled
A ray of light strikes a flat, 2.00-cm-thick block of glass (n = 2) at an angle of ? = 8.7° with respect to the normal, Find the angle of refraction at the top surface
A 5.0 deep swimming pool measures 30 by 16. What force does the water exert on the bottom of the pool
An airplane is flying at 165.1mi/h (its speed in still air) in a direction such that with a wind of 64.4mi/h blowing from east to west, What must be the plane's heading (direction) for it to fly directly south
The plates have sides of length L = 0.810 m. One of the plates has charge Q= + 2.62×10-6 C, while the other plate has charge -Q. Calculate the magnitude of the electric field between the plates, not close to the edge
Two heavy pendula of mass m are suspended from strings of length l inside a railroad car of mass M that can roll freely on horizontal tracks (ignore the moment of inertia of the wheels).
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
A concave mirror produces an upright virtual image that is 3.00cm times taller than the object. The focal length is 15.0cm. Dtermine the distance to the image
A 300-g block is dropped onto a vertical spring with spring constant k =180.0 N/m. find the speed of the block just before it hits the spring
The pupil of an eagle's eye has a diameter of 6.0 mm. Two field mice are separated by 0.010 m. How much time passes until the eagle sees the mice as separate objects
A rifle with a barrel length of 56 cm fires a 14 g bullet with a horizontal speed of 350 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 13 cm.
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