If the wavelength of a monochromatic source is 600 nm in vacuum, what is the wavelength from the same source when it passes through a liquid where the speed of light is 2.00 × 10^8 m/s? (c = 3.00 × 10^8 m/s)
a. 612.5 nm
c. 400 nm
b. 671 nm
d. 392 nm
C
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Which of the following is not a characteristic of superplasticity?
(a) Grains elongate in the direction of flow. (b) Temperatures are above half of the melting temperature. (c) The material is highly strain-rate sensitive. (d) A strain rate of approximately 10-3 s-1.
Mercury is geologically inactive because it:
A) has lost much of its internal heat. B) has a very dense atmosphere. C) is too big to be geologically active. D) is the closest planet to the Sun.
________ are hot compact remnant stars whose mass is typically between one and several times that of the Sun, but their size is only 10 km or less.
A. Neutron stars B. White dwarfs C. Pulsars D. Black dwarfs
Which of the following would not protect low carbon steel from corrosion in contact with an electrolyte?
(a) Coat the steel completely with copper (b) Attach the steel to the positive terminal of a 12 V battery (c) Attach a piece of zinc to the steel in the area exposed to electrolyte (d) Completely paint the steel