Physics, 20.01.2020 23:31 tomboyswagge2887
1. the 05.30 flight to malaga takes off with a mass, including fuel, passengers, luggage and crew, of
300,000kg. the gravitational field strength is 10n/kg.
a) the plane climbs to an altitude of 1200m. if the runway was at an altitude of 220m, how much
gravitational potential energy has it gained in kilojoules?
b) by lunchtime, the plane has used up some fuel and is now 50,000kg lighter. how much gravitational
potential energy has the plane lost? (it's still at 1200m.)
Answers: 2
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