A simple pendulum, 2.6 m in length, is released with a push when the support string is at an angle of 45.0° from the vertical. If the initial speed of the suspended mass is 1.25 m/s when at the release point, what is its speed at the bottom of the swing? (g = 9.8 m/s2)
a. 4.1 m/s
b. 3.9 m/s
c. 4.1 m/s
d. 16 m/s
e. 7.2 m/s
a
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How many atoms are in 1.00 mol of Mg?
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The central engine for active galaxies is believed to be a(n) ________
Fill in the blank(s) with correct word
A merry-go-round spins freely when Diego moves quickly to the center along a radius of the merry-go-round. As he does this, it is true to say that
A) the moment of inertia of the system decreases and the angular speed remains the same. B) the moment of inertia of the system decreases and the angular speed decreases. C) the moment of inertia of the system decreases and the angular speed increases. D) the moment of inertia of the system increases and the angular speed increases. E) the moment of inertia of the system increases and the angular speed decreases.