A conclusion of the Michelson-Morley experiments was that
A. interference of EM-waves does not happen.
B. the ether doesn't exist.
C. Galilean relativity holds.
D. light has momentum.
E. light has no momentum.
B. the ether doesn't exist.
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The number of seconds in a 30 day month is
a. 
b. 
c. 
d. 
A uniform rod is 2.0 m long. The rod is pivoted about a horizontal, frictionless pin through one end. The rod is released from rest at an angle of 30° above the horizontal. What is the angular acceleration of the rod at the instant it is released?
a. 4.7 rad/s2 b. 6.9 rad/s2 c. 6.4 rad/s2 d. 5.6 rad/s2 e. 4.2 rad/s2
The energy used by a 100 watt light bulb in 1 hour is
a. 0.01 J b. 360,000 J c. 100 J d. 6,000 J e. none of the above
What is the biggest misconception concerning the definition of geography?
What will be an ideal response?