Sunsets are red because sunlight must pass through more atmosphere then, and the atmosphere scatters even more light at bluer wavelengths, transmitting mostly red light
Indicate whether the statement is true or false
TRUE
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The above figure is an example of a vector image.
Answer the following statement true (T) or false (F)
A parachutist jumps out of an airplane and opens her parachute. She then floats downward at a constant rate. Why is she not accelerating?
A. The parachutist exerts a gravitational pull on Earth that is equal to its pull on her. B. As she falls, she is weightless and therefore cannot accelerate. C. The parachute has very little mass, so its inertia is negligible. D. She is accelerating, but gravity's pull is weak at high altitudes. E. The parachute provides an upward force to balance gravity, so the net force is zero.
A refrigerator is an example of a heat mover
a. True b. False Indicate whether the statement is true or false
The early Solvay Conferences had a great effect upon the development of quantum mechanics
a. True b. False Indicate whether the statement is true or false