The proper abbreviation for ‘seconds' is ‘sec.'
Indicate whether the statement is true or false
F
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Water in a tightly closed flask evaporates at a rate of 0.00038 lbm/hr. Estimate the specific humidity of the air 1 inch above the liquid water-air surface if the dry bulb temperature is 70ºF. The water-air surface is 3 in^2.
What will be an ideal response?
Which statement about the first quarter moon is FALSE?
A) It rises about noon. B) From the Earth, it appears 25% sunlit. C) It is the half moon of the evening sky. D) It is highest in the sky at sunset. E) It occurs about a week after new moon.
Why can we say a star spends its life trying to maintain equilibrium?
What will be an ideal response?
Intensity: The amplitude of the electric field for a certain type of electromagnetic wave is 570 N/C. What is the amplitude of the magnetic field for that wave? (c = 3.00 × 108 m/s)
A. 2.91 µT B. 1.90 µT C. 1.10 µT D. 1.41 µT E. 2.41 µT