At 96F the saturation density of air is 0.04 kg/m3 . If the weather report says the relative humidity is 90 when the temperature is 96F, the humidity is __________.
Fill in the blank(s) with correct word
Question 2
The Eiffel tower in Paris is made primarily of iron, whose coefficient of linear expansion is about 10 x 10-6/C. On a cold day when the temperature is 10C the Eiffel tower is 300 meters tall. Its height on a hot day when the temperature is 40C is __________.
Fill in the blank(s) with correct word
The pH scale and the relative acidities of common substances
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