The symbol indicating the number of neutrons in a nucleus is N
Indicate whether the statement is true or false
T
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Charge is distributed uniformly on the surface of a spherical nonconducting shell. A point particle with charge q is inside. The electrical force on the particle q is least when:
A) it is near the inside surface of the shell B) it is at the center of the shell C) it is halfway between the shell center and the inside surface D) it is near, but not at, the center of the shell E) all of the above (the force is zero everywhere inside)
In which stage of a star's evolutionary cycle does it spend the most time?
A. the post-main sequence B. the pre-main sequence C. the main sequence D. It depends on the mass of the star.
According to recent theorizing in high energy physics,
A) it is impossible to create or destroy quarks. B) protons and neutrons can be put together to form quarks. C) we should be able to find isolated quarks. D) All of the above. E) None of the above.
Lightning occurs as
A) water droplets in a cloud interact with one another, making the cloud electrically charged. B) electrical energy flows from a cloud to the ground. C) the surrounding air expands. D) electric energy flow from cloud to ground as interaction of water droplets electrically charge the cloud.