A helium-filled balloon has a volume of 1 m3 . As it rises in the earth's atmosphere, its volume expands. What will its new volume be (in m3) if its original temperature and pressure are 20°C and 1 atm, and its final temperature and pressure are ?40°C and 0.1 atm?
a. 4
b. 6
c. 8
d. 10
e. 1.5
c
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Rosie is giving a presentation on pet grooming and has brought her own dog to show to the audience. she is not sure, however, the best way to incorporate the dog into her speech so that audience has the best experience. what should cora do?
Fiberscopes are based on the physical phenomena called
A) diffusion. B) dispersion. C) total internal reflection. D) absorption. E) polarization.
Velocity Selector: In a velocity selector consisting of perpendicular electric and magnetic fields, the speeds of the charged particles passing through the selector are increased or decreased until they are equal to the desired speed.
A. True B. False
Early human culture, involving villages and a sense of history, could best be described as a(n)
A) industrial culture. B) migratory culture. C) hunting culture. D) scientific culture. E) agri-culture.