Stars are continually forming in the halo of our Galaxy today
Indicate whether the statement is true or false
FALSE
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The technique of connecting multiple telescopes together to combine the images from each telescope is known as
a. aberration. b. resolving power. c. active optics. d. adaptive optics. e. interferometry.
What is the most accurate way to determine the distance to a distant galaxy (a galaxy that is too far away for us to see individual stars)?
A) radar ranging B) parallax C) using Cepheid variables D) using white dwarf supernovae
Capacitors in Combination: Three capacitors are arranged as shown in the figure, with a voltage source connected across the combination. C1 has a capacitance of 9.0 pF, C2 has a capacitance of 18.0 pF, and C3 has a capacitance of 27.0 pF. Find the potential drop across the entire arrangement if the potential drop across C2 is 257.0 V.
A. 1500 V B. 1000 V C. 470 V D. 430 V
Exhibit 11-1
Two birds of prey hurtling after the same mouse collide in mid-air and grab each other with their talons. Each 250-g bird is flying at 30 m/s at a 60° angle to the ground.
?
?
Use this exhibit to answer the following question(s).
Refer to Exhibit 11-1. What is the magnitude of their total momentum, in 
, immediately after the collision?
A. 0 B. 6.5 C. 7.5 D. 13 E. 15