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A 2090 kg test plane has an engine that can deliver a maximum power of 4.90 x 10^5 watts. The pilot hits the throttle when the plane is flying at 54.2 m/s and maintains maximum power for 3.4 seconds.

a) What is the plane's initial kinetic energy?

b) What is the plane's change in kinetic energy?

c) What is the plane's final kinetic energy?

d) What is the new speed of the plane after 3.4 seconds?

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