A certain Carnot engine has Th = Tc + 35K, and an efficiency of 20.0%. What is Th?
A) 70.0 K
B) 140 K
C) 175 K
D) 210 K
E) 245 K
C
Physics & Space Science
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Like Herbig-Haro objects associated with protostars, the lobes around radio galaxies are the result of ________ streaming from the active nucleus. Describe their alignment
Fill in the blank(s) with correct word
Physics & Space Science
Which of these radio waves would fall in the "water hole"?
A) 19 cm wavelength B) 243 cm in wavelength C) 15,000 cm in wavelength D) 150 cm in wavelength E) 6.563 × 10-5 cm in wavelength
Physics & Space Science
Instructions: On occasion, the notation 
will be a shorthand notation for 
.
If 
= [15, 80°] and 
, what is the magnitude of 
?
A. 15
B. 35
C. 32
D. 5.0
E. 23
Physics & Space Science
How many constitutional isomers that are dibromoethanes exist?
a. 3 b. 4 c. 5 d. 2 e. 6
Physics & Space Science