A uniform rod (length = 2.4 m) of negligible mass has a 1.0-kg point mass attached to one end and a 2.0-kg point mass attached to the other end. The rod is mounted to rotate freely about a horizontal axis that is perpendicular to the rod and that passes through a point 1.0 m from the 2.0-kg mass. The rod is released from rest when it is horizontal. What is the angular velocity of the rod at the
instant the 2.0-kg mass passes through its low point?
a. 1.7 rad/s
b. 2.2 rad/s
c. 2.0 rad/s
d. 1.5 rad/s
e. 3.1 rad/s
a
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Fill in the blank(s) with correct word
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A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the second source?
Saturn's rings are
a. composed of ice particles. b. in the plane of the planet's equator. c. within the planet's Roche limit. d. all of the above e. none of the above
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