A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is __________
Fill in the blank(s) with correct word
0.5 s
Physics & Space Science
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Velocity Addition: Two spaceships approach Earth from opposite directions. One has a speed of 0.21c and the other a speed of 0.34c, both relative to Earth. What is the speed of one spaceship relative to the other?
A. 0.51c B. 0.55c C. 0.58c D. 0.61c E. 0.64c
Physics & Space Science
A helium nucleus?
A. A B. B C. C D. D E. zero F. Other G. AA H. BB I. CC J. DD
Physics & Space Science
If the Universe is truly flat, then what is the curvature and type of Universe?
a. positive, open b. zero, flat c. negative, closed d. None of the other choices are correct.
Physics & Space Science
A 5000-kg freight car moving at 2 m/s collides with a 10,000-kg freight car at rest. They couple upon collision and move away at
A) 2 m/s. B) 1 m/s. C) 2/3 m/s. D) 1/3 m/s.
Physics & Space Science