Imagine looking at the face of a CRT. The bright spot where the electron beam hits that face is exactly in the screen’s center. You bring a permanent magnet toward the body of the CRT vertically from above. The magnet is oriented vertically with its north pole downward. In what direction will the spot deflect?
A. Up
B. Down
C. The spot does not deflect.
D. Right
E. Left
F. Some other direction (specify)
E. Left
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The separation between Africa and the Arabian peninsula is a(n) ____________________ valley
Fill in the blank(s) with correct word
If the size of our solar system were scaled down to a radius of 1 kilometer, approximately how far away would the nearest stars be on this scale?
A) several hundred kilometers B) several million kilometers C) several thousand kilometers D) several billion kilometers
A bar magnet and an electrically polarized object are placed next to each other on a table. What happens?
A. The object and magnet accelerate toward each other until they touch and then they repel B. The positive part of the object turns toward the north pole of the magnet C. The positive part of the object turns toward the south pole of the magnet D. Nothing happens
If a 20-kg object dropped in air has a terminal speed of 60 m/s, what was its acceleration at 30 m/s?
a. 9.80 m/s2 b. 7.35 m/s2 c. 4.90 m/s2 d. 2.45 m/s2 e. More information is needed to answer this question.