Water causes partial melting of the mantle at which type of plate boundary?
A) convergent boundaries
B) divergent boundaries
C) transform-fault boundaries
Answer: A
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A simple pendulum, consisting of a mass m and a string of length L, swings upward, making an angle ? with the vertical. The work done by the tension force is
A) zero. B) mgL. C) mgL cos ?. D) mgL sin ?. E) mgL tan ?.
A 0.12-m-radius grinding wheel takes 6.0 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?
a. 5.6 rad/s2 b. 0.22 rad/s2 c. 1.5 rad/s2 d. 0.080 rad/s2
The two types of bright nebulae are emission nebulae and ______________ nebulae
Fill in the blank(s) with correct word
Molar Specific Heats: A certain ideal gas has a molar specific heat at constant pressure of 33.2 J/mol ? K. Its molar specific heat at constant volume is closest to which of the following values? (R = 8.31J/mol ? K)
A. 41.9 J/mol ? K B. 16.6 J/mol ? K C. 25.1 J/mol ? K D. 24.9 J/mol ? K E. 49.8 J/mol ? K