A white dwarf stops collapsing and forms a stable structure due to forces arising from ____
a. rapid rotation
b. magnetic fields
c. gas pressure
d. neutron degeneracy
e. electron degeneracy
e
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At what distance could one theoretically distinguish two automobile headlights separated by 1.5 meters? Assume a pupil diameter of 0.50 cm and yellow headlights seen at the wavelength 5.0 × 10^?7 m. Assume eye fluid has an average n = 1.33
a. 6.0 km b. 12 km c. 9.0 km d. 3.0 km e. 16 km
Which path correctly indicates the motion of the pendulum bob when it is cut at the instant it is at the top of its swing?
A. A
B. B
C. C
D. D
O2 is an example of
A) a molecule only B) a compound only C) both a molecule and a compound D) a collection of isolated atoms
During a nuclear reaction, the particles involved lose 4.8 × 10-28 kg of mass. How many joules of energy are released by this reaction? (c = 3.00 × 108 m/s)
A) 4.3 × 10-11 J B) 1.4 × 10-19 J C) 1.6 × 10-36 J D) 2.1 × 10-40 J E) 5.3 × 10-45 J