During takeoff a jet aircraft goes from 0 m/s to 60 m/s in 5 seconds. (a) What is the jet's acceleration? (b) What is the jet's speed after 22 seconds?
Question 2
A compass needle is a magnet with a north and south pole. If a tiny compass were placed in the magnetic field shown in the figure, how would the compass needle aligned in the magnetic field?
a. The needle would line up with a magnetic field line with the compass needle pointing in the same direction as the arrows in the diagram.
b. The needle would line up with a magnetic field line with the compass needle pointing in the opposite direction to the arrows in the diagram.
c. The compass needle always aligns perpendicular to the magnetic field lines.
d. The north pole of the compass will point directly at the north pole of the magnet, regardless of the field lines.
e. The north pole of the compass will point directly away from the north pole of the magnet, regardless of the field lines.
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