A plane starting at rest at one end of a runway undergoes a uniform acceleration of 48 m/s for 13 seconds before takeoff. What is its velocity at takeoff?

Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader