The elliptical galaxies are most like what part of our Milky Way? Explain
What will be an ideal response?
They are "all halo", with only Population II stars and poor in gas and dust. Also, their structure is somewhat spherical, like our halo, as well.
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(b) Two identical particles with equal speeds, one moving east and one moving west, collide. After the collision, the same particles move north and south, respectively, with the same speeds that they had originally.
A. C B. F
One philosophical difference between Newtonian and quantum physics is
A) nature is predictable according to Newtonian physics, but nature is unpredictable according to quantum theory. B) Newtonian physics is unable to deal with such abstractions as energy, whereas quantum physics is able to deal with these abstractions. C) Newtonian physics is now known to be incorrect, but scientists have proven that quantum physics is absolutely correct. D) nature is unpredictable according to Newtonian physics, but nature is predictable according to quantum theory. E) Newtonian physics emphasizes the measurement process whereas quantum physics recognizes that the measurement process should not be included in physical theories.
If you connect the circuit as shown in Fig. 19.1 in the Laboratory Guide with either resistor in place, but one fuse is removed from the circuit, this represents a circuit with a burned-out fuse. What is the voltage across the resistor? Explain your answer. V = ___________
Fill in the blank(s) with correct word
A clown 2 m tall looks at himself in a full-length mirror (floor-to-ceiling). Where in the mirror must he look to see his feet?
a. 1 m from the floor b. 50 cm from the floor c. 25 cm from the floor d. at the bottom of the mirror e. 1.5 m from the floor