Superconducting electromagnets

A) account for cases of magnetic levitation.
B) are characterized by easy penetration of external magnetic fields.
C) both of these
D) none of the above


Answer: A

Physics & Space Science

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The lower the temperature of an object, the

A) lower the frequency of radiation it emits. B) longer the wavelengths it radiates. C) both of these D) neither of these

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Which dimension would number of immunizations fall under?

What will be an ideal response?

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Photosynthetic life existing on a planet farther from the Sun than the Earth would most likely be

A) smaller, less efficient at collecting solar radiation or have a faster metabolism than photosynthetic life on Earth B) identical to photosynthetic life on Earth C) larger, more efficient at collecting solar radiation or have a slower metabolism than photosynthetic life on Earth D) impossible

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A room in a house has a floor area of 110 ft2 . Which of the following is most likely the approximate volume of the room?

a. 3 m3 b. 30 m3 c. 300 m3 d. 3 000 m3 e. 10 m3

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