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Woodstock, many of the performances and their implied messages are relevant to current trends in music and American culture today.?
Which performances do you think are relevant? which are not?
1 AnswerRock and Pop5 years agoCan you volunteer at a psychiatrist's private practice for clinical hours for grad. school?
if so, what kind of things can you do for experience volunteering for a psychiatrist?
3 AnswersHigher Education (University +)5 years agoMost of the mass of our galaxy is contained in _____.?
a. the so-called dark mass or dark matter
b. the spiral arms
c. the nuclear bulge
d. open and globular star clusters
e. the galactic disk
2 AnswersAstronomy & Space5 years ago21 cm radiation comes from spin-flip transition that occurs in _____.?
a. very hot stars
b. globular clusters
c. open clusters
d. the so called "dark mass"
e. clouds of neutral hydrogen
3 AnswersAstronomy & Space5 years agoThe location of the center of our galaxy was first determined by observations of?
a. the Sun.
b. the spiral arms.
c. the motions of nearby stars.
d. black holes.
e. globular clusters.
1 AnswerAstronomy & Space5 years agoAn object from which neither matter nor light can escape is called a _________.?
a. neutron star
b. black hole
c. planetary nebula
d. supernova
e. white dwarf
5 AnswersAstronomy & Space5 years agoWhich of these is the same size as a typical neutron star?
a. a neutron
b. the USA
c. the Earth
d. a city
e. the Sun
f. the Moon
3 AnswersAstronomy & Space5 years agoA zero-age main-sequence star is one that can __________.?
a. keep burning nuclear fuel indefinitely.
b. sustain thermonuclear reactions in its core.
c. maintain gravitational contraction.
d. balance the gravitational contraction with gravitational expansion.
1 AnswerAstronomy & Space5 years agoWhich of the listed colors of main sequence stars will have the shortest main- sequence lifetime?
a. white
b. yellow
c. blue
d. orange
e. red
1 AnswerAstronomy & Space5 years agoWhen the sun becomes a red giant, it will expand to approximately _______ its current radius.?
a. 10 times
b. 10,000 times
c. 100 times
d. 5 times
e. 2 times
2 AnswersMathematics5 years agoBlue main sequence stars have ___________ than red main sequence stars.?
a. less mass and a longer lifetime
b. less mass and a shorter lifetime
c. more mass and a shorter lifetime
d. more mass and a longer lifetime
2 AnswersAstronomy & Space5 years agoWhat is a coronal mass ejection?
a. flamelike protrusions seen near the limb of the Sun and extending into the solar corona.
b. a process in which a high-energy ultraviolet photons are absorbed and the absorbed energy is radiated as lower-energy photons of visible light.
c. an event in which billions of tons of gas from the Sun is suddenly blasted into space at high speeds.
d. the distortion of an image formed by a telescope due to differing focal lengths of the optical system.
e. light radiated by atoms and ions in the Earth's upper atmosphere, mostly in the polar regions.
4 AnswersAstronomy & Space5 years agoThe surface temperature of the sun is approximately 5800K. What is the approximate temperature of the sun's corona?
a. 500K
b. 1000000K
c. 1000K
d. 2000K
e. 5000K
1 AnswerAstronomy & Space5 years agoThe light collecting area of a telescope is larger in telescopes which have a larger ____________.?
eyepiece
b. diameter
c. magnification
d. focal length
4 AnswersAstronomy & Space5 years agoWhich of the following effects is caused by atmospheric turbulence?
a. blurring
b. chromatic abberation
c. interferometry
d. refraction
e. grazing incidence
4 AnswersAstronomy & Space5 years agoWhich technique allows astronomers tp correct for blurring effect?
a. adaptive optics
b. interferometry
c. reflection
d. diffraction
e. refraction
4 AnswersAstronomy & Space5 years ago