A circuit consists of three identical lamps connected to a battery as in Figure OQ28.14. The battery has some internal resistance. The switch S, originally open, is closed. What happens to the brightness of lamp C?
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Geologic evidence that supports the theory of continental drift does not include
a. glaciation in the Southern Hemisphere. b. drag marks on the ocean floor. c. continuity of geologic structures. d. the discovery of the same fossils on different continents.
What is the zeroth law of thermodynamics?
a. Energy is always conserved in thermodynamic processes. b. Momentum is always conserved. c. The pressure of a fluid decreases as its velocity increases. d. If two objects are in thermal equilibrium with a third object, they are in thermal equilibrium with each other. e. If a = c and b = c, then a = b.
For a martensitic transformation to be reversible there cannot be the production of _____________to accommodate strain.
Fill in the blank(s) with the appropriate word(s).
How do we know what goes on under the surface of the Sun?
A) We have X-ray images from satellites of the interior of the Sun. B) Astronomers create mathematical models that use the laws of physics, the Sun's observed composition and mass, and computers to predict internal conditions. C) We have sent probes below the surface of the Sun. D) By measuring Doppler shifts, we observe vibrations of the Sun's surface that are created deep within the Sun. E) both B and D