Comprise the oldest members of the milky way
Which of the following comprise the oldest members of the Milky Way?
a) the Sun and other solar mass stars
b) O stars
c) red giant stars in spiral arms
d) Cepheid variables
e) globular clusters
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If the contact time with the sidewalk is 1/800s, what is the magnitude of the average force exerted on the superball by the sidewalk?
Definition of contemporay wellness?
What kinds of objects lie in the halo of our galaxy?
The spontaneous fission rate of 238U is 1 fission per gram per 1 00 sec. Show that this is equivalent to a half-life for fission of 5.5 x 1 015 years.
The Nichrome wire is l =6 cm long and has radius r=1 mm.3 Nichrome has 9 × 1028 mobile electrons/m and an electron mobility of 7 × 10^-5 (m/s)/(V/m). What is the magnitude of the electric field in the copper wire?
Which of the following statements about the spiral structure of spiral galaxies is false?
A flight attendant pulls her 64 N flight bag a distance of 287 m along a level airport floor at a constant velocity. The force she exerts is 35 N at an angle of 56° above the horizontal.
What similarities and differences do you see between the Civil Rights Movement and the Labor Movement led by Cesar Chavez?What was the influence of poverty on these movements? Give two specific examples that show the influence of poverty?
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