If a proton inside the nucleus of an atom suddenly turned into a neutron, while the atom retained its original number of electrons, what properties of the atom would change?
A) only its atomic number
B) only its atomic mass number
C) only its electrical charge
D) both its atomic number and atomic mass number, but not its electrical charge
E) both its atomic number and electrical charge, but not its atomic mass number
E) both its atomic number and electrical charge, but not its atomic mass number
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Spectroscopic binaries are difficult to analyze because
a. we can't measure the radial velocities of each star in the system. b. we can't see the shape or tilt of the orbit. c. we can't find the diameters of the stars. d. we can't determine the luminosities of the stars. e. the Doppler shift is not measurable.
Consider the following quantities: (1) current, (2) resistance, (3) coil area, (4) wire cross-sectional area, and (5) magnetic field. Upon which of the quantities is the magnetic dipole moment of a current carrying coil dependent?
a) 1 and 5 only b) 1 and 2 only c) 2 and 3 only d) 1, 3, 4, and 5 e) 1 and 3 only
If the graph of the position as a function of time for an object is a horizontal line, that object cannot be accelerating
A) True B) False
In the U.S. AC line voltage oscillates at a frequency of
a. 50 Hz c. 120 Hz b. 60 Hz d. none of the above