Chapter 1: Q8CQ (page 32)
When is it necessary to use relativistic quantum mechanics?
In Physics, relativistic quantum mechanics is used for explaining the motion of those systems that have a size which is comparable to that of a hydrogen nucleus and are travelling at speeds comparable to the speed of light.
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Find the volume of the given solid. Bounded by the planes \(z = x,y = x,z = 0,x + y = 2\)
Diffraction spreading for a flashlight is insignificant compared with other limitations in its optics, such as spherical aberrations in its mirror. To show this, calculate the minimum angular spreading of a flashlight beam that is originally \(5.00\,{\rm{cm}}\) in diameter with an average wavelength of \(600\,{\rm{nm}}\).
Question: How many times longer than the mean life of an extremely unstable atomic nucleus is the lifetime of a human? (Hint: The lifetime of an unstable atomic nucleus is on the order of\({\bf{1}}{{\bf{0}}^{ - {\bf{22}}}}{\rm{ }}{\bf{s}}\).
(a)-What is the efficiency of a cyclical heat engine in which 75.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of Heat transfer into the engine (b) How much work does it produce for 100.0 kJ of heat transfer into the engine?
How many heartbeats are there in a lifetime?
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