A heat engine having the maximum possible efficiency has an efficiency of 35.0% when operating between two heat reservoirs. If the temperature of the hot reservoir is 700 K, what is the temperature of the cold reservoir?
A) 200 K
B) 245 K
C) 350 K
D) 455 K
E) 600 K
D
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Which of the following statements is true of Nereid, Neptune's moon?
A) It is about 80 percent the size of Earth's moon. B) It generates a magnetic field of its own. C) It takes about an Earth year to circle Neptune once. D) It follows a large, angular orbit.
Conversion of Units: An oak tree was planted 22 years ago. How many seconds does this correspond to? (Do not take leap days into account.)
A. 6.9 × 108 B. 1.2 × 107 C. 2.9 × 107 D. 2.8 × 108
A convex lens is thinnest in its center; it refracts light to a focus, while a convex mirror reflects it to the focus instead
Indicate whether the statement is true or false
In a Voigt solid with an elastic modulus of 1 GPa, if a tensile stress of 1 MPa is applied, the total strain after a long time is equal to _________.
Fill in the blank(s) with the appropriate word(s).