Tracks, borings, and burrows are examples of
a. replaced remains.
b. index fossils.
c. trace fossils.
d. microfossils.
c
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Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C As the ice is melting, the temperature of the ice-water mixture rises by
a. 0°C b. +5°C c. –5°C d. +10°C e. –10°C
What is the wavelength of peak emission for a black body at 37°C?
(c = 3.0 × 108 m/s, Wien displacement law constant is 2.9 × 10-3 m ? K, ? = 5.67 × 10-8 W/m2 ? K4) A) 94 µm B) 78 µm C) 7.8 µm D) 9.4 µm E) 29 µm
Which curve would have the smallest slope? Assume no phase changes take place
1.the temperature of water versus added energy 2.the temperature of ice versus added energy 3.the temperature of steam versus added energy 4.They would all have the same slope.
If atmospheric pressure increases by an amount ?p, which of the following statements about the pressure in a lake is true? (There could be more than one correct choice.)
A) The absolute (total) pressure does not change. B) The gauge pressure increases by ?p. C) The absolute (total) pressure increases by ?p. D) The absolute (total) pressure increases, but by an amount less than ?p. E) The gauge pressure does not change.