When the speed of a wave depends on the wavelength (or frequency), the waves are said to exhibit diffraction
Indicate whether the statement is true or false
FALSE
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If all the "dark matter" in our universe were to be instantaneously removed, which of the following would not happen?
A) The Milky Way would fly apart. B) Clusters of galaxies would fly apart. C) The universe would expand forever. D) The Solar System would fly apart. E) All of the above
You are at the leading end of a canoe and your friend is at the trailing end while the canoe is drifting along at a speed v. You toss a backpack to your friend. While the backpack is in flight, what is the canoe's speed? Ignore any friction effects between the canoe and the water
1.It is greater than v. 2.It is less than v. 3.It maintains the same speed it had before the backpack was thrown. 4.We cannot tell from the information given.
The asteroid belt is found between ___________?
a. Earth and Mars
b. Mars and Jupiter
c. Jupiter and Saturn
d. Venus and Earth
Which of the following is a non-renewable resource?
a. uranium b. water c. wind d. biomass e. radiant solar