What value of n corresponds to a wavelength of 922.7 nm in the Paschen series?
A) 3 B) 15 C) 9 D) 5 E) 7
C
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The xy plane is "painted" with a uniform surface charge density which is equal to 40 nC/m2. Consider a spherical surface with a 4.0-cm radius that has a point in the xy plane as its center. What is the electric flux through that part of the spherical surface for which z> 0?
A. 14 N ? m2/C B. 11 N ? m2/C C. 17 N ? m2/C D. 20 N ? m2/C E. 23 N ? m2/C
The buoyant force that acts on a submerged object is equal to
A) the object's weight. B) the object's volume. C) both the weight and volume of the object. D) the weight of water it displaces.
In a hydrogen atom, a given electron has ? = 7. How many possible values can m1 have?
A) 6 B) 7 C) 15 D) 98
This illustration shows the orbits of the three satellites that will compose the Laser Interferometer Space Antenna (LISA). What gravitational wave frequencies will LISA be sensitive to?
a. 0.0001 to 1 hertz to observe gravitational waves from binary systems and black holes. b. 1 to 10 hertz to observe gravitational waves from binary systems and black holes. c. 10 to 1000 hertz to observe gravitational waves from supernovae. d. 0.0001 Hertz to 1 hertz to observe gravitational waves of planets moving around stars. e. 0.0001 Hertz to 1 hertz to observe gravitational waves of moons moving around planets.