How much time does it take a beam of light to travel 2.9 km through space. (c = 3.0 × 108 m/s)
A) 9.7 s
B) 9.7 ms
C) 9.7 ?s
D) 9.7 ns
E) 9.7 ps
C
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A particle is moving in a circular orbit about a fixed center of a two-dimensional harmonic oscillator. The ground-state (n = 1 ) energy is 1.0 eV. What is the energy of the second excited level (n = 3)?
A) 0.33 eV B) 3.0 eV C) 0.1 eV D) 9.0 eV E) 1.0 eV
If you find yourself in a locality where the magnetic declination is "15.° East," in which direction is true North in relation to a compass needle?
What will be an ideal response?
According to this plot, which is the third most abundant element in the universe?
A) boron B) oxygen C) helium D) lithium E) hydrogen
As the speed of an object increases, its relativistic momentum:
a. stays the same as its classical momentum. b. does not change since momentum is a conserved quantity. c. increases less than it classical momentum. d. increases more than its classical momentum.