A proton is moving at m/s in a magnetic field of 30 mT. What is the magnetic force on the proton?

A.

B.

C. 0.0

D.

E. More information is needed.


E. More information is needed.

Physics & Space Science

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One of the predictions of Kepler's laws of planetary

motion is that a) the planets move in circular orbits. b) for a non-circular orbit, the closer a planet is to the Sun the faster it travels. c) planets nearer the Sun have the longest orbital periods. d) all planets move in elliptical orbits around Earth.

Physics & Space Science

Belt and zone circulation

a. occurs on Jupiter. b. occurs on Saturn c. is caused by rising and sinking gases. d. is more obvious on Jupiter than on Saturn. e. All the above

Physics & Space Science

What is the principal evidence that new plate material is continually being formed?

What will be an ideal response?

Physics & Space Science

Pairs of forces of equal magnitude act on identical cylinders as shown in the figures. In which example is the cylinder in translational and rotational equilibrium?

A.


B.

C.

D.

E.

Physics & Space Science