Compared with our Sun, most stars in the halo are
A) young, red, and dim and have fewer heavy elements.
B) young, blue, and bright and have much more heavy element material.
C) old, red, and dim and have fewer heavy elements.
D) old, red, and dim and have much more heavy element material.
E) old, red, and bright and have fewer heavy elements.
Question 2
How are the event horizon and Schwarzschild radius related?
A) The Schwarzschild radius is smaller than the distance from the singularity of a black hole to the event horizon.
B) The Schwarzschild radius is equal to the distance from the singularity of a black hole to the event horizon.
C) The Schwarzschild radius is greater than the distance from the singularity of a black hole to the event horizon.
D) The size of the Schwarzschild radius is unrelated to the distance from the singularity of a black hole to the event horizon.
E) The size of the Schwarzschild radius is proportional to the distance from the singularity of a black hole to the event horizon.
Young male Pacific Walruses on Cape Pierce in Alaska. Note the variation in the curvature and orient
The Spectra of Stars with Different Surface Temperatures.
Plotting the Ages of Stars
Vertebral column. Avoid heavy pressure directly over spinous processes.
Good body mechanics for lifting heavy objects.