One kilogram of chilled water (0°C) is placed in a freezer which is kept at 0°F (?18°C). Approximately how much electric energy (in kilocalories) is needed just to freeze the water if the room temperature is maintained at 75°F (24°C)? (LF,ice = 333 J/g; cice = 2.09 J/g/°C.)
a. 11
b. 15
c. 16
d. 13
e. 33
d
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The Jovian planets formed beyond the _______________, where water vapor, methane, and ammonia could freeze to form ice particles
Fill in the blank(s) with correct word
Compound Microscope: A simple compound microscope normally uses
A. a short focal length objective and a shorter focal length eyepiece. B. a short focal length objective and a longer focal length eyepiece. C. a long focal length objective and a shorter focal length eyepiece. D. a very long focal length objective and a longer focal length eyepiece.
What value should you use as the area of the base when calculating the answer to Part C?
In Part C, you are asked to calculate the volume of a rectangular prism that has a length of 5.6 cm, a width of 2.1 cm, and a height of 6.6 cm.
A. 12 cm2
B. 11.8 cm2
C. 11.76 cm2
Special relativity predicts that light bends near dense objects
Indicate whether the statement is true or false