From a knowledge of the size and mass of a nucleus, one can estimate the density of nuclear material. Such a calculation shows that the density of nuclear matter is on the order of magnitude of
A) 1011 kg/m3.
B) 1017 kg/m3.
C) 104 kg/m3.
D) 108 kg/m3.
E) 102 kg/m3.
B
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A(n) ___________ is a set of beliefs that appears to be based on scientific ideas, but which fails to obey the most basic rules of science
a. theory b. hypothesis c. pseudoscience d. allegory e. scientific model
Some giant elliptical galaxies are found to have disks of gas and dust with star forming regions, and are probably the result of ________
Fill in the blank(s) with correct word
Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greatest when
a. the plane of the loop is parallel to the magnetic field. b. the plane of the loop is perpendicular to the magnetic field. c. the magnetic flux through the loop is a maximum. d. the plane of the loop makes an angle of 45° with the magnetic field.
The Andes are examples of which type of mountain?
a. Fault-block b. Volcanic c. Fold d. None of these