The distance between two asteroids is 1600 km. How much time does it take for a light signal to go from one asteroid to the other? (c = 3.0 × 108 m/s)
A) 19 ms
B) 4.5 ms
C) 5.3 ms
D) 13 ms
E) 19 µs
C
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A mountain climber of mass 60. kg slips and falls a distance of 4.0 m, at which time he reaches the end of his elastic safety rope. The rope then stretches an additional 2.0 m before the climber comes to rest
What is the spring constant of the rope, assuming it obeys Hooke's law?
When we apply the Lorentz factor ? to length contraction, we
A) multiply by ? as in the equation for time dilation. B) multiply by the reciprocal of ? C) find it does not apply.
The tensile force divided by the original cross-sectional area of a specimen is the engineering normal _____________.
Fill in the blank(s) with the appropriate word(s).
Egyptian dams have brought unmitigated blessings to Egypt
What will be an ideal response?