Astronomers use Wien's law to measure the temperature at the Sun's interior.
Answer the following statement true (T) or false (F)
False
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If you had something the size of a sugar cube that was made of neutron star matter, it would weigh
A) about 50 pounds. B) as much as the entire Earth. C) about as much as a truck. D) about as much as a large mountain.
The closed universe is compared to the surface of a(n) ________ in spacetime
Fill in the blank(s) with correct word
How much energy is transported across a 1.00-cm2 area per hour by a sinusoidal electromagnetic wave whose electric field has a maximum strength of 30.4 V/m?
(?0 = 8.85 × 10-12 C2/N ? m2, ?0 = 4? × 10-7 T ? m/A, c = 3.0 × 108 m/s) A) 0.44 J B) 0.44 mJ C) 0.44 nJ D) 0.44 ?J
Headward erosion of a group of cirques around a mountain may produce
A) glacial lakes. B) an arete. C) a horn. D) a hanging valley.