It is observed that, as bubbles rise in a deep column of water, the diameter of the bubbles increases. This is best explained by
A. Archimedes' Principle.
B. Pascal's Principle.
C. Bernoulli's Principle.
D. Boyle's Law.
Answer: D
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The most abundant component of the atmospheres of Uranus and Neptune is
A) hydrogen. B) helium. C) methane. D) ammonia. E) nitrogen.
Although mass transfer can occur in binary stars, the small mass change does not impact the evolution of either companion
Indicate whether the statement is true or false
An ammonia molecule is
a. pyramidal and polar. b. pyramidal and nonpolar. c. flat and polar. d. flat and nonpolar.
A horizontal wire of length 3.6 m carries a current of 6.0 A and is oriented so that the current direction is 50° S of W. The Earth's magnetic field is due north at this point and has a strength of 0.14 × 10^-4 T. What is the size of the force on the wire?
a. 1.6 × 10^-4 N c. 1.9 × 10^-4 N b. 0.28 × 10^-4 N d. 2.5 × 10^-4 N