A wire is carrying current vertically downward. What is the direction of the force on this wire due to Earth's magnetic field?
A) horizontally towards the east
B) horizontally towards the west
C) horizontally towards the north
D) horizontally towards the south
E) vertically upward
A
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Addition by 1. Components: Vector 
has a magnitude of 6.0 m and points 30° south of east. Vector 
has a magnitude of 4.0 m and points 30° west of south. The resultant vector 
+ 
is given by
A. 7.2 m at an angle of 64° south of east. B. 3.3 m at an angle of 64° south of east. C. 9.8 m at an angle of 26° south of east. D. 9.8 m at an angle of 64° south of east. E. 3.3 m at an angle of 26° south of east.
How did ancient peoples of central Africa predict the weather?
What will be an ideal response?
If the masses of two planets doubles and the distance between them also doubles, the force between them would be
A) one-quarter. B) half as much. C) twice as much. D) four times as much. E) none of the above
The weight _____________gives the weight of material present in each phase of a two-phase region, but this says nothing about the phase purity.
Fill in the blank(s) with the appropriate word(s).