A neutron star is
A) the remains of a star that died by expelling its outer layers in a planetary nebula.
B) a star made mostly of elements with high atomic mass numbers, so that they have lots of neutrons.
C) the remains of a star that died in a massive star supernova (if no black hole was created).
D) an object that will ultimately become a black hole.
C
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The circuit below contains three 100-W light bulbs and a capacitor. The emf is 110 V and the capacitor is fully charged. Which light bulb(s) is(are) brightest?
a.
A
b.
B
c.
C
d.
A and B
e.
A and C
Single-Slit Diffraction: A beam of light of wavelength 630 nm is incident on a slit that is 0.400 mm wide. If the distance between the slit and the screen is 1.80 m, what is the width on the screen of the central bright fringe?
A. 1.94 mm B. 2.94 mm C. 3.54 mm D. 5.67 mm E. 6.94 mm
What is meant by the term FTP in tube boiling?
What will be an ideal response?
What fraction of the energy density of the universe consists of dark matter?
a) 75 percent b) 1 percent c) 99 percent d) 21 percent e) 4 percent