A reasonable estimate for the mass of a typical new-born baby is
A) 1 kg.
B) 3 kg.
C) 10 kg.
D) 20 kg.
B
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Saturn's rings appear to be brighter and younger than the dirty, dark rings around Uranus and Neptune
Indicate whether the statement is true or false
Two cars, one in front of the other, are traveling down the highway at 55.0 m/s. The car behind sounds its horn, which has a frequency of 530 Hz. What is the frequency heard by the driver of the lead car? (vsound = 340 m/s)
a. 382 Hz b. 735 Hz c. 456 Hz d. 530 Hz e. 632 Hz
Over withdrawal of groundwater causes ground subsidence in areas
A) of karst topography.
B) underlain by unconsolidated sediments.
C) underlain by consolidated sediments.
D) all of these
The density of white dwarf stars is about a million times that of the Sun
Indicate whether the statement is true or false