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Calculate the cross-section for the scattering of a 10MeV α-particle by a gold nucleus (Z=79, A=197) through an angle greater than 10, 20, and 30 degrees. Neglect nuclear recoil.
A box of mass 5 Kg is connected by a massless rope to a 10.0 Kg. A force of 60.0 N is applied to the 5 Kg. What is the tension in the rope connecting the 2 masses
in the drawing suppose that the angle of incidence is 1 22.6deg the thickness of the pane is 6.94 mm and the
A boy of mass 50 kg runs up a hill of vertical height 300 m in 20 minutes. calculate the work he does climbing the hill
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
a 0.75-kg mass moving with a speed of 5.0 ms encounters a 0.25-kg mass moving in the opposite direction with speed 5.0
a person has a near point of 40 cm and a far point of 2.0 m. when looking through lenses of focal length -2.0 m, what is the nearest an object can be to be seen clearly
A laser with wavelength 650 nm is incident on a single slit with width 10 mm. How far apart will the first dark bands on either side of the central maximum be
A 54-kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109 N/m2) tow rope that is attached to a boat. What is the change in length of the rope when the skier has an acceleration whose magnitude is 0.59 m/s2
"Romeo tosses a pebble at Juliet's window to wake her. Unfortunately, Find the magnitude and direction of the pebble's velocity as it leaves Romeo'shand
A solenoid of radius 1.6 cm has 351 turns and a length of 10 cm.The permeability of a free space is 1.25664 × 10^?6 V · s/A · m. Find the rate at which current must change through it to produce an emf of 56 mV
A 134g baseball moving 28.6 strikes a stationary 5.20kg brick resting on small rollers so it moves without significant friction. What is the baseball's speed after the collision
A child throws a ball downward from a tall building. Note that the ball is thrown, not dropped and disregard air resistance. What is the acceleration of the ball immediately after it leaves the child's hand
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