2 Select the correct answer.
An airplane on a runway accelerates at 4.0 meters/second? for 28.0 seconds before takeoff. How far does the plane travel on the runway before
takeoff?
OA 1.6 x 103 meters
OB.
17 x 103 meters
OC 3.1 x 103 meters
OD
3.3 x 103 meters
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What happens in a global convection cell

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.