Aplane designed for vertical takeoff has a mass of 7.7 ã 103 kg. find the net work done on the plane as it accelerates upward at 1.4 m/s2 through a distance of 31.0 m after starting from rest. answer in units of j.

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.