Baryons are composed of _______ quarks, and mesons are composed of ________ quarks
a. two, two
c. three, three
b. two, three
d. three, two
D
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Explain the large-impact hypothesis
What will be an ideal response?
Two balls are thrown from the top of a building. One is thrown up and the other is thrown down, both with the same initial speed. What are their speeds when they hit the street?
A. they are traveling at the same speed B. the one thrown down is traveling faster C. the one thrown up is traveling faster D. it depends on the height of the building
Which of the following worlds have the thinnest lithospheres? (Hint: The answer is the same no matter whether you think of "thinnest" in actual depth in kilometers or as a proportion of the planet's radius.)
A) Earth and the Moon B) Venus and the Moon C) Mercury and Venus D) Earth and Mars E) Earth and Venus
The period of a pendulum is 2.0 s in a stationary inertial frame of reference. What is its period when measured by an observer moving at a speed of 0.60c with respect to the inertial frame of reference?
What will be an ideal response?