Medium Gas Lens
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which doesnt depend on Newtons laws of gravity?
Which of the following methods used to determine the mass of a cluster does not depend on Newton's laws of gravity?
A. Measuring the orbital velocities of galaxies in a cluster
B. Measuring the temperature of X-ray gas in the intracluster medium
C. Measuring the amount of distortion caused by gravitational lens
D. none of the above
C. Measuring the amount of distortion caused by gravitational lens.
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