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A rifle with a weight of 20 N fires a 4.0-g bullet with a speed of 210 m/s.
(a) Find the recoil speed of the rifle.
______m/s
(b) If a 600-N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle.
A scintillator absorbs an incident flux of 5 MeV alpha particles that totals 10^6 particles/s, estimate the expected signal from the photodiode
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other? (Hint: Use charge conservation and solve for one of the initial charges. You would end up with a quadratic equation. The solutions g..
Light intensity of a 100 W bulb at a certain distance is 1 W/m2. The distance is doubled. What are the electric field amplitude and the magnetic field amplitude at that new distance
A proton is traveling horizontally at 5.4 × 106 m/s south. A magnetic flux density has a magnitude of 0.25 T and is directed north. What is the force on the proton
A box is lifted with a pry bar , by slipping the bar under the box and lifting up on the bar. what is the size of the force required to lift the box
A zoom lens has a focal length that varies from 30 to 200 mm. Which setting will make the subject look the largest Which setting will include the widest angle of field
A 15.0 kg bucket of water is suspended by a very light rope wrapped around a solid uniform cylinder 0.300 m in diameter with a mass of 12.0 kg. What is the tension in the rope while the bucket is falling
1 kilograms of water are changed from liquid water at 100°C into steam at 100°C. For each situation, determine the change in mass of the water
Water (? = 1.00E-3 Pa*s) is flowing through a horizontal pipe with a volume flow rate of 0.0149 m3/s. Calculate the radius of the horizontal pipe
A geological survey ship mapping the floor of the ocean sends sound pulses down from the surface and measures the time taken for the echo to return. How deep is the ocean at a point where the echo time (down and back) is 7.07 s
An electric motor rotating a workshop grinding wheel at a rate of 81 rev/min is switched off. Suppose the wheel has a steady negative angular acceleration of magnitude 1.90 rad/s2.
A record turntable rotates through 5.0 rad in 2.8 s as it is accelerated uniformly from rest. What is the angular velocity at the end of that time
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