There are nine books in a stack, each with a weight of 6 N. The coefficient of friction between all the books is 0.3 as is the coefficient between the table and the bottom book. What horizontal push must I just exceed on the next to bottom book to start sliding the top eight books off the bottom one?
a. 1.80 N
b. 14.4 N
c. 48.0 N
d. 16.2 N
b
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During which stage of planetary development did the lunar maria form?
a. cratering b. differentiation c. flooding d. tectonic plate movement e. slow surface evolution
An adiabatic compression is performed on an ideal gas. The final pressure is equal to 0.560 times the initial pressure and the final volume equals 1.50 times the initial volume. What is the adiabatic constant for the gas?
A) 1.33 B) 1.43 C) 1.48 D) 1.52 E) 1.67
The three principal types of mountain building are volcanic, fault-block, and ______________
Fill in the blank(s) with correct word
Which force would not be explained in a grand unified theory, but would require a "theory of everything"?
a. The weak force. b. The strong (or color) force. c. The electromagnetic force. d. The gravitational force. e. The electroweak force.