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1) The mass of a bottom quark is 4.20Gev/c^2 and was found by colliding a beam of protons with a cloud of stationary protons.
a) What was the energy of the proton beam?
b) How fast were they moving?
(Hint: The problem is relativistic. Use the center of mass frame.) mp=938.2 Mev/c^2
2) During an experiment you determine the cat off wavelength of a cathod ray tube to be λ0. You repeat the experiment using light with a wavelength of 1/2 λ0.
What are the stopping voltage(potential) and electron velocity in terms of λ0 for second experiment?
3) What are the first 4 wavelength of hte following series for the hydrogen atom?
Lyman
Balmer
Paschen
You are applying a anti reflecting coating to your plane. You don't want to be seen by radar which uses 'light' of wavelength 2cm. determine the minimum thickness of this coating
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A thundercloud similar to the one described in Example 24.3 produces a lightning bolt that strikes a radio tower. find the effective resistance of the air during the lightning strike
A particle has a charge of -3.00 nC. A.) Find the magnitude and direction of the electric field due to this particle at a point 0.250 directly above it. B.) Upward or downward? C.) At what distance from the particle does its electric field have a ..
In a certain RL time constant circuit, it takes 135 msec for the current to reach maximum after the switch is closed.
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A 115 mCi radioactive tracer is made in a reactor. When delivered to a hospital 16 hours later its activity is 95 mCi. What is the tracer's half-life
Consider an airplane flying at Mach 4 at 70,000 feet. A shock is formed due to supersonic flow. Find the total pressure at the nose using 3 approaches
The total electric field consists of the vector sum of two parts, Find the magnitude and direction of the total field, Specify the directional angle relative to the x axis
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