A good approximation to gravity above the surface of the Earth is g = 9.81 - 3.32

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A good approximation to gravity above the surface of the Earth is g = 9.81 - 3.32 × 10-6h m/s2, where h is the distance above the Earth's surface in meters. The commercial airplane in Fig. 1.23, with a mass of 140 000 kg, flies at a height of 10 km above the Earth's surface. Calculate its weight on the Earth's surface and at 10 km. Also calculate its potential energy at 10 km.
Figure 1.23
A good approximation to gravity above the surface of the
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Thermodynamics for Engineers

ISBN: ?978-1133112860

1st edition

Authors: Kenneth A. Kroos, Merle C. Potter

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