Tensile stress is
A) the strain per unit length.
B) the same as force.
C) the ratio of the change in length.
D) applied force per cross-sectional area.
D
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Conservation of charge means that
a. The total amount of charge in the universe is constant. b. No experimenter has ever seen a single charge destroyed by itself. c. Electrons by themselves can be neither created nor destroyed. d. Charge can be neither created nor destroyed. e. All of the above.
Describe a model for explaining how light is transmitted through glass
What will be an ideal response?
Scientists have made great strides towards unifying the fundamental forces of nature. At the time of the publishing of the text, the most unified of theories shows that the total number of forces to be fundamental in physics is
3 1 2 4 5
A neutron is an example of
A) a lepton. B) a meson. C) a baryon. D) a gauge boson. E) none of the above.