A particle whose charge has the specified sign enters a region of space where the magnetic field has the direction shown. What is the initial direction of the magnetic force acting on the particle in each case?





A. Forward

B. Backward

C. Rightward

D. Leftward

E. Into the paper

F. Out of the paper

T. (Zero force)


E. Into the paper

Physics & Space Science

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A. 2.9 × 10-5 Hz B. 3.9 × 1013 Hz C. 1.0 × 1013 Hz D. 1.0 × 1011 Hz

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A. 53 cm B. 55 cm C. 60 cm D. 75 cm

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To be dimensionally consistent, velocity [L/T], force mass [M], and length [L] must be related as follows.

A.
B.
C.
D. velocity = force length/mass

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A mirror with a focal length 100 cm has a 4.0 cm object placed 20 cm in front of it. What is the position of the image?

A) 25 cm behind the mirror B) 100 cm in front of the mirror C) 20 cm in front of the mirror D) 20 cm behind the mirror E) 25 cm in front of the mirror

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