When studying light, a nanometer is a unit
used for
a) resonance.
b) frequency.
c) wavelength.
d) loudness.
c
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Why does it hurt more to fall from a certain height to the ground than it does to fall from the same height into a swimming pool?
What will be an ideal response?
The Miller-Urey experiment relied on special conditions found only on Earth
Indicate whether the statement is true or false
An object is placed in front of a lens which forms an image of the object
A) If the lens is convex, the image cannot be virtual. B) If the image is real, then it is also inverted. C) If the image is real, then it is also upright. D) If the image is virtual, then it is also inverted. E) If the image is virtual, the lens must be a diverging lens.
A person stands 35.0 m from a flag pole. With a protractor at eye level, he finds that the angle at the top of the flag pole makes with the horizontal is 25.0 degrees
Approximately how high is the flag pole? (The distance from his feet to his eyes is 1.7 m.) A) 10 m B) 20 m C) 30 m D) 50 m E) 80 m