No radionuclides decay by emitting
a. protons.
b. alpha particles.
c. electrons.
d. gamma rays.
a
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Which of the following is not a cause of wrinkles?
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An electron is briefly accelerated in the direction shown in the figure below and to the left. It creates an EM wave pulse that eventually reaches points P and S 
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A. A B. B C. C D. D E. Toward the viewer. F. Away from the viewer. T. The vector is zero. G. AA
A proton of mass m is at rest when it is suddenly struck head-on by an alpha particle (which consists of 2 protons and 2 neutrons) moving at speed v
If the collision is perfectly elastic, what speed will the alpha particle have after the collision? (Assume the neutron's mass is equal to the proton's mass.) A) zero B) 2v/3 C) 3v/5 D) 5v/3
A 25-g traffic light hangs midway on a cable between two poles 40 meters apart. If the sag in the cable is 0.40 meters, what is the tension in each side of the cable?
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