A stars total velocity is a combination of its ________ and ________ velocities
Fill in the blank(s) with correct word
radial; transverse
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The critical evidence for cosmic acceleration in 1998 came from two teams of astronomers, both observing:
A) hypernovae. B) gamma ray bursts. C) type I supernovae. D) type II supernovae. E) ages of globular clusters.
If molecules in the sky scattered orange light instead of blue light, sunsets would be colored
A) orange. B) yellow. C) green. D) blue. E) none of the above
An electron is an example of
A) a lepton. B) a meson. C) a baryon. D) a gauge boson. E) hadrons.
A 92.5 kg stunt man stands on a piston that will launch him out of a vertical tube. The piston applies a constant force F to the man’s feet. Starting from rest, the force is applied for 1.20 s, and during that time interval, the man attains a velocity of 25.5 m/s. What was the man’s apparent weight during this time interval?
A. Unable to answer without knowing the value of F B. 3740 N C. 1970 N D. 2830 N E. 2870 N