Answer the following statement(s) true (T) or false (F)
1. A given object always has a specific moment of inertia I, independent of the axis around which it rotates (as long as the axis goes through the object’s center of mass).
2. An isolated star collapses so that its radius is half its original radius. Both its angular momentum and its rotational energy must be conserved.
1. FALSE
2. FALSE
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Photon Energy: What is the wavelength of a 6.32-eV photon? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A. 197 nm B. 167 nm C. 216 nm D. 234 nm
Riding down a river in an old canoe, if the discharge of the river increases a little and the width and the depth of the river stay the same, the speed of the river will
A) decrease. B) increase. C) stay the same. D) become unpredictable.
Titan has oceans made chiefly of liquid ________, along with smaller amounts of methane and propane
Fill in the blank(s) with correct word
How do we account for the great variety of substances in the world?
A) The Earth is 4.5 billion years old. B) Most of these substances are organic compounds. C) Atoms are incredibly small. D) There are many possible combinations of atoms.