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During takeoff, an airplane goes from 0 to 50 m/s in 8 s.
a) What is its acceleration?
b) How fast is it going after 5 s?
c) How far has it traveled by the time it reaches 50 m/s?
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On average, an electric water heater operates for 2.3 h each day. what is the cost of operating the heater
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