The magnetic fields of Uranus and Neptune are peculiar in that they are

a. highly inclined to their planet's axis of rotation.
b. very weak (virtually zero).
c. produced by the solar wind.
d. produced by disturbances caused by the orbits of the moons.
e. all of the above.


a

Physics & Space Science

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Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the shortest wavelength?

A.


B.

C.

D.

E.

Physics & Space Science

A 2.00-kg mass oscillates on the end of a spring with spring constant 12.0 N/m. Its amplitude of oscillation decreases from 10.0 cm to 1.0 cm in 4.00 minutes. What is the linear damping coefficient of this oscillator?

A) 134 N?s/m B) 1.76 N?s/m C) 0.311 N?s/m D) 0.0384 N?s/m E) 0.622 N?s/m

Physics & Space Science

Kepler improved the Copernican planetary hypothesis by

a) putting the Sun at the center of our solar system. b) putting Earth at the center of our solar system. c) suggesting that the Sun rotates on its axis. d) determining the true shapes of the planetary orbits.

Physics & Space Science

Consider the decay ?o ? ?- + e+. This decay is

A) forbidden because conservation of baryon number is violated. B) forbidden because conservation of lepton numbers is violated. C) allowed. D) forbidden because conservation of mass is violated. E) forbidden because conservation of energy is violated.

Physics & Space Science