Which of the following material states has the highest entropy?
(a) Amorphous solid
(b) Vapor
(c) Liquid
(d) Single crystal
(b) Vapor
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Which of the following are characteristics of laser light? (There may be more than one correct choice.)
A) It is coherent. B) It contains a full spectrum of wavelengths. C) It is produced by an inverted population of atoms.
Assuming that the gravitational acceleration is constant and equal, in magnitude, to the acceleration of gravity at the surface of the earth,
how far would light deflect from a straight line path as it travels one Earth diameter, 1.28 × 107 m? A) 25.4 cm B) 8.94 mm C) 3.14 m D) 1.77 cm E) 12.7 cm
Two identical cars are traveling around the same curve on a highway. One of them is moving at 60 mph, and the other is moving at 30 mph. The centripetal force acting on the car moving at 60 mph is __________ the value of the centripetal force acting on the car moving at 30 mph
a. one quarter b. one half c. the same as d. twice e. four times
The oldest evidence of life on Earth dates back to about how many years ago?
a. 65 million b. 3.8 million c. 3500 million d. 570 million