Express the following number to three significant figures: 21.25 m
What will be an ideal response?
21.3 m
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A particle with charge 2?C is placed at the origin. An identical particle, with the same charge, is placed 2 m from the origin on the x axis, and a third identical particle, with the same charge, is placed 2 m from the origin on the y axis. The magnitude of the force on the particle at the origin is:
A) 9.0 × 10-3 N B) 6.4 × 10-3 N C) 1.3 × 10-2 N D) 1.8 × 10-2 N E) 3.6 × 10-2 N
The speed of light in vacuum is
A. smaller than the speed of light in glass B. the same as the speed of light in glass C. greater than the speed of light in glass
Light is a transverse wave
a. True b. False Indicate whether the statement is true or false
Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the earth. Yet we detect large numbers of muons at ground level because of the special relativistic effect of __________
Fill in the blank(s) with correct word