The pigments used in paints or dyes used on fabrics work by
A. selective absorption
B. birefringence
C. polarization
D. interference
A. selective absorption
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If life is to develop on a planet, the planet must lie well inside the inner edge of its star's habitable zone
Indicate whether the statement is true or false
The odds of a 100-meter asteroid hitting Earth over the course of one year is approximately __________.
Fill in the blank(s) with the appropriate word(s).
An object of mass 8.0 kg is attached to an ideal massless spring and allowed to hang in the Earth's gravitational field
The spring stretches 3.6 cm before it reaches its equilibrium position. If this system is allowed to oscillate, what will be its frequency? A) 2.6 Hz B) 0.0045 Hz C) 0.67 Hz D) 2.1 Hz
Two uniform solid spheres have the same mass, but one has twice the radius of the other. The ratio of the larger sphere's moment of inertia to that of the smaller sphere is
A) 9/5. B) 8/5. C) 4/5. D) 4. E) 2.