Nearsighted people wear glasses with
lenses that are designed to
a) make the image larger.
b) improve the focus of the image.
c) make the image smaller.
d) make the image brighter.
b
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A medium-mass star becomes a red giant as the result of _______________ fusion in a shell
Fill in the blank(s) with correct word
Only very small amounts of infrared and ultraviolet light can penetrate all the way to the ground. Based on the diagram, which statement is true?
A) A small percentage of the incoming light at every infrared and ultraviolet wavelength reaches the ground, while the remaining light at the same wavelengths does not reach the ground. B) Most infrared and ultraviolet wavelengths do not reach the ground at all; the only wavelengths that do are the ones closest to the visible portion of the spectrum. C) Most infrared and ultraviolet wavelengths do not reach the ground at all; the only wavelengths that do are the ones closest to the radio and x-ray portions of the spectrum.
A race car goes around a curve at 50 m/s. The radius of the curve is 400 m. What is the car's acceleration?
Consider the following statement, and explain whether or not it is sensible: If you had a very fast spaceship, you could travel to the celestial sphere in about 100 years
What will be an ideal response?