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physics

Home » physics

The temperature at which water boils depends mainly on ____________?

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A. Air temperature B. Relative humidity C. Air pressure D. Air density E. The specific heat of air

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Home » physics

Melanoma (skin cancer) is associated with ______________?

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A. ozone accumulation B. ozone depletion C. acid rain D. allergens

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Home » physics

The earth’s atmosphere is divided into layers based on the vertical profile of __________?

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A. Air pressure B. Air temperature C. Air density D. Wind speed

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Home » physics

A step – down choppers can be used in___________?

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A. Electric traction B. Electric vehicles C. Machine tools D. All of these

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Home » physics

The output current in PWM DC – DC converters is equal to___________?

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A. Average value of the output inductor current B. Product of an average inductor current and a function of duty ratio C. Either A. or B. D. None of these

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Home » physics

The opposite of susceptibility is___________?

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A. Immunity B. Emission C. Interference D. Electromagnetic compatibility

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