The blue tint of a coated camera lens is largely caused by what effects?
a. diffraction
b. refraction
c. polarization
d. interference
d
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The nadir marks the point of the celestial sphere directly above your head
a. True b. False Indicate whether the statement is true or false
If you measure the width of an outdoor barn with a steel tape on a very cold day, your measured width will be
A) a bit short. B) a bit long. C) the same as on an average-temperature day.
In a nuclear fission process involving the use of 239Pu fuel, if the approximate average binding energy per nucleon in the product fragments is 8.8 MeV while that of the fuel atom is 8.1 MeV, what approximate net energy is released per fission?
a. 170 MeV b. 270 MeV c. 190 MeV d. 90 MeV e. 50 MeV
A pump uses a piston of 15 cm diameter that moves at 2.0 cm/s as it pushes a fluid through a pipe. What is the speed of the fluid when it enters a portion of the pipe that is 3.0 mm in diameter? Treat the fluid as ideal and incompressible
A) 50 m/s B) 50 cm/s C) 6.0 cm/s D) 22 cm/s