Author Question: At a particular instant, a proton moves Eastward in a uniform magnetic field that is directed ... (Read 77 times)

Charlie · **on:** Jul 27, 2018

At a particular instant, a proton moves Eastward in a uniform magnetic field that is directed straight downward. The magnetic force that acts on it is

A) to the South.
B) zero.
C) directed upward.
D) Northward.
E) Westward.

Question 2

A newly discovered asteroid of the Aten family is found to be 50 closer to the Sun than the Earth is. Given this, how much sunlight does it receive compared to the Earth?

A) half as much
B) four times as much
C) twice as much
D) about the same