The clock on the Big Ben Tower in London reads 12 noon. If you travel away from the clock at a very high speed and view it with a telescope, you would see
A) run slower than a clock in your vehicle.
B) run faster than a clock in your vehicle.
C) be frozen at 12 noon.
Answer: A
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In the apparatus shown in figure Q4.1a, the value displayed by the ammeter is proportional to 
A. The rate at which electrons emerge from the cathode. B. The average kinetic energy of the ejected electrons. C. The maximum kinetic energy of the ejected electrons. D. Both A and C.
When Nellie Newton hangs by the ends of a rope draped over a large pulley, the tension in each supporting vertical strand is
A) half her weight. B) equal to her weight. C) twice her weight. D) none of the above
At what angle from the vertical must a fish underwater look in order to see a fisherman at the shore? (Note: n for water is 1.33.)
A) 41.2° B) 48.8° C) 60.0° D) 36.9° E) 90.0°
A highly reliable laser emits a steady beam of light at a fixed frequency f that hits a photodetector a light year away in what we can assume is empty space. The laser/detector setup is now placed as a system with a black hole directly behind the laser. What happens to the frequency of the light beam?