A mercury manometer measures a pressure of 150 mmHg. What is this pressure in kPa?
A. 12
B. 15
C. 20
D. 24
E. 29
C. 20
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What component is combined with the converging lens to construct a light microscope?
a. A focusing tool for the lens. b. A second, diverging, lens. c. A second, converging, lens. d. A concave mirror. e. A convex mirror.
A parallel light beam containing two wavelengths, 480. nm and 700. nm, strikes a plain piece of glass at an angle of incidence of 60°. The index of refraction of the glass is 1.4830 at 480. nm and 1.4760 at 700. nm
Determine the angle between the two beams in the glass.
The electrical force is stronger between the nucleus and an inner electron for atoms of
A) low atomic number. B) high atomic number. C) both of these D) neither of these
In noting that our world is "differentiated," we mean that
A) the density of its materials decreases as you go downward toward the core. B) the Earth has evolved in a different pattern than any other planet. C) the iron and nickel core is denser than the silicate mantle and crust. D) radioactive heating in the core is at a slower pace than when the Earth was new. E) the Earth's magnetic field is different now in polarity than it was 700,000 years ago.