3. After being given clearance for departure, a Boeing 747 accelerates at a rate of 125 ft/sec. The 747 's wheels leave the ground after a
period of 40 seconds. What is the 747's velocity (V2) at takeoff?
V2 = 5,000 ft/sec

Act has a 1200: 5 or 240: 1 turns ratio. it is short circuited. what is the maximum current at 1200a primary if we put a 100ohm resistor across the secondary end of the ct. use it as current source circuit.

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.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical