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
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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
Which dimension would number of immunizations fall under?
What will be an ideal response?
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
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