Snowstorms accompanied by high winds and low temperatures are called ______________
Fill in the blank(s) with correct word
blizzards
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A(n) ________ spectrum has bright lines on dark background.
A. absorption B. continuous C. emission D. None of these choices are correct.
Which statement regarding the force of a magnetic field on a current-carrying wire is true?
a. The magnetic force on the wire is independent of the direction of the current. b. The force on the wire is directed parallel to both the wire and the magnetic field. c. The force takes its largest value when the magnetic field is parallel to the wire. d. All of the above statements are false.
The primary of a transformer were connected to a dc power source, the transformer would have a voltage output
A) at a higher efficiency than with an ac source. B) the same as its input. C) that is also dc. D) only briefly while being connected or disconnected. E) none of the above
Which of the terrestrial worlds has the strongest magnetic field?
A) the Moon B) Mercury C) Earth D) Mars E) Venus