Brenda is flying a small airplane. Her velocity, with respect to the air around her is 45.0 m/s south. The air is also moving with a velocity of 9.9 m/s east. To an observer on the ground, what is the angle of brendas velocity?

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.