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

Physics & Space Science

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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

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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?

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According to this plot, which is the third most abundant element in the universe?

A) boron B) oxygen C) helium D) lithium E) hydrogen

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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.

Physics & Space Science