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A 1.2 kilogram object moving with a speed of 8m/s collides perpendicularly with wall and emerges with a speed of 6m/s in the opposite direction. If the object is in contact with the wall for 2.0 millisecond, find the magnitude of the average force on the object by the wall?
Standing on the surface of a small spherical moon whose radius is 6.30 104 m and whose mass is 8.00 1018 kg, What maximum height above the surface of the moon will the rock reach
josie and charlotte push a 12-kg bag of playground sand for a sandbox on a frictionless horizontal wet polyvinyl
A 500 lines per mm diffraction grating is illuminated by light of wavelength 510nm. How many diffraction orders are seen
A fiber optic cable has n=1.4 in the center and n=1.2 for cladding. If a light pulse is incident along the cable's axis, what is the maximum angle the cable can be bent
If a wind begins blowing from the southwest at a speed of 110km/h (average), calculate the velocity (magnitude) of the plane
A vessel at rest at the origin of an xy coordinate system explodes into three pieces. Just after the explosion, one piece, of mass m, moves with velocity, what is the magnitude of the velocity of the third piece
A 200MW laser pulse is focused with a lens to a diameter of 1.5 mu m. What is the laser beam's electric field amplitude at the focal point
an automobile with a mass of 1000kg including passengers settles 1.0cm closer to thenbspground for every 100kg of
Four charges are located in a plane as follows: q1 = -5 uC at (4,0) m; q2 = -3 uC at (4,4) m; q3 = -4 uC at (0,4) m; q4 = -2 uC at (0,0) m. Find the magnitude and direction of the resultant field at (2,2)
A plane flies at 1.25 times the speed of sound. The sonic boom reaches a man on the ground exactly 1 min after the plane passed directly overhead. What is the altitude of the plane
A 0.9- m long rod rotates about an axis through one end and perpendicular to the rod, with an angular speed of 1.6 rev/s. The plane of rotation of the rod is perpendicular to a uniform magnetic field of 1.3 T. Calculate the emf induced across the end..
A 4100-kg truck traveling with a velocity of 13 m/s due north collides head-on with a 1300-kg car traveling with a velocity of30 m/s due south. What is the momentum of each vehicle prior to the collision
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