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Use the uncertainty principle to show that if an electron were present in the nucleus (r ˜ 10 - 15m), its kinetic energy (use relativity) would be hundreds of MeV. (Since such electron energies are not observed, we conclude that electrons are not present in the nucleus).
In a diffraction experiment, light of 600. nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen. find the wavelength of the light from the second source
A sprinter of mass 72.8 kg runs at a constant speed of 10.8 m/s in a straight line. Find the extra force the sprinter must exert on the ground to round a curve of radius 10.4 m
In a very busy off-campus eatery one chef sends a 217-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter from left to right at 1.67 m/s. At what speed does it move
A rifle with a barrel length of 61.0 cmfires a 10.0 g bulletwith a horizontal speed of 360 {\rm m/s}. How long does it take the bullet to come to rest
the motor in a refrigerator has a power output of 200w. if the freezing compartment is at 270k and the outside air is
A capacitor is connected across an ac generator whose frequency is755 Hz and whose peak output voltage is140 V. The rms current in the circuit is 3.0 A. What is the capacitance of the capacitor?
If light from a 560-nm monochromatic source in air is incident upon the surface of fused quartz (n = 1.56) at an angle of 60°, what is the wavelength of the ray refracted within the quartz
A rock is thrown from the roof of a building, by an initial velocity of 10.0m/s at an angle of 30.0degree above the horizontal. The rock is observed to strike the ground 43.0m from the base of the building. What is the height of the building assuming..
An aluminum wing on a passenger jet is 32 m long when its temperature is 26°C. At what temperature would the wing be 8 cm (0.08 m) shorter?
A steel column that has a diameter of 10 cm supports a mass of 1000 kg resting on it. What is the stress produced on the steel column
a real object is located at the zero end of a meter stick. a large concave mirror at the 100 cm end of the meter stick
Assume you are standing on a straight high way and watching a car moving away from you. The air is perfectly clear, and after awhile you see only one taillight. Suppose the diameter of your pupils 4.0mm and the index of refraction of your eye is 1.38..
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