What is the upper limit to the mass of a white dwarf?
A) There is no upper limit.
B) There is an upper limit, but we do not yet know what it is.
C) about 2.8 solar masses
D) about 1.4 solar masses
E) about 1 solar mass
D) about 1.4 solar masses
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Which part of a vibrating string experiences the maximum acceleration?
A) nodes B) ends C) antinodes
How much energy is stored in a room 3.0 m by 4.0 m by 2.4 m due to the earth's magnetic field with a strength of 5.0 × 10-5 T? (?0 = 4? × 10-7 T • m/A)
A) 29 mJ B) 57 mJ C) 10 mJ D) 100 mJ E) 570 mJ
Harmonics
a. are components of a complex waveform b. have frequencies that are integer multiples of the frequency of the complex waveform c. are pure tones d. have sinusoidal waveforms e. all of the above
The halo stars in our Galaxy are bright, upper-main-sequence stars
Indicate whether the statement is true or false