A hair dryer designed for the 120 V outlets of the United States is taken to Europe where the outlets provide 240 V. What is the ratio v, of a transformer that allovws the hair dryer to operate in Europe?

a. 1/4
b. 2/1
c. 1/2
d. 4/1

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.