Planetary rings are
A) nearer to their planet than any of the planet's large moons.
B) orbiting in the equatorial plane of their planet.
C) composed of a large number of individual particles that orbit their planet in accord with Kepler's third law.
D) known to exist for all of the jovian planets in our solar system.
E) All of the above
E) All of the above
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A generator is designed to produce a maximum emf of 170 V while rotating at 3200 rpm. The 1525 coils of the generator are circular with diameter 7.5 cm. Assuming the magnetic field in the generator is 0.075 T, what is the necessary magnetic field for the generator?
A. 0.0079 T B. 0.30 T C. 0.075 T D. 0.24
If each copper atom in a wire were to contribute two conduction electrons instead of just one, its conductivity would
A. increase by a factor of 4. B. increase by a factor of 2. C. remain the same. D. decrease by a factor of 2. E. decrease by a factor of 4.
A spaceship is moving past us at a speed close to the speed of light. What would passengers on the spaceship conclude about our clocks?
A) Time is the same for everyone. B) They would conclude that our clocks going faster than theirs. C) They would conclude that our clocks going slower than theirs. D) They would conclude that our clocks going at the same rate as theirs. E) They can't see our clocks, but we can see theirs.
One of the problems with adopting a one-dimensional biological causal model of abnormality is...
a). it ignores that contributions of psychological & sociocultural factors to the disorder b). it ignores any interactions with other contributing factors c). it ignores any environmental influences on the disorder d). all of these e). none of these