Relative Velocity: An airplane is pointed at 45° north of east and is moving at 71 m/s with respect to the air. The jet stream (moving air) carries the plane at 30 m/s toward the east. What are the magnitude and direction of the velocity of the plane relative to the ground?
What will be an ideal response?
94 m/s at 32° north of east
Physics & Space Science
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If light in a spectroscope passed through round holes instead of slits, spectral lines would appear
A) as thicker lines. B) round. C) dimmer.
Physics & Space Science
The stars ? Cygni and ? Cygni are in the constellation Cygnus. Which statement is true?
A) ? Cygni appears brighter. B) ? must be the eastern most star in the constellation. C) ? appears redder. D) ? is hotter. E) ? Cygni appears brighter.
Physics & Space Science
Explain the four internal processes that gradually destroy a solar nebula
What will be an ideal response?
Physics & Space Science
Standing Waves on a String: A standing wave is oscillating at 950 Hz on a string, as shown in the figure. What is the wave speed?
A. 380 m/s B. 570 m/s C. 290 m/s D. 190 m/s
Physics & Space Science