A sealed cylinder fitted with a movable piston contains ideal gas at 27°C, pressure 0.500 × 105 Pa, and volume 1.25 m3
What will be the final temperature if the gas is compressed to 0.800 m3 and the pressure rises to 0.820 × 105 Pa?
A) 42°C
B) 68°C
C) 130°C
D) 250°C
E) 150°C
A
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If a supersonic plane is flying at increasing speed as the temperature decreases, what happens to the Mach number in this instance?
a. It stays the same. b. It increases. c. It decreases. d. It can do any of the above. e. It can do either (a) or (b) but not (c).
Swimmers at a water park have a choice of two frictionless water slides as shown in the figure
Although both slides drop over the same height, h, slide 1 is straight while slide 2 is curved, dropping quickly at first and then leveling out. How does the speed v1 of a swimmer reaching the end of slide 1 compares with v2, the speed of a swimmer reaching the end of slide 2? A) v1 > v2 B) v1 < v2 C) v1 = v2 D) No simple relationship exists between v1 and v2 because we do not know the curvature of slide 2.
You would like to know the chemical composition of a star's atmosphere. Therefore you will need to obtain the star's ______________ spectra
Fill in the blank(s) with correct word
List the two major regions of the near side of the Moon, as seen with the naked eye
What will be an ideal response?