A geosynchronous satellite is a satellite orbiting the Earth above a fixed point at the equator of the Earth. It is known that the gravitational acceleration due to Earth at a distance r from the center of the Earth varies according to gr = gR R²/r². In this expression, R is the radius of the Earth, R 6370 km, and gR is the gravitational acceleration on the surface of the Earth, gr≈ 9.8 m/s². Determine "height" a. the radius of a geosynchronous orbit in kilometers and in miles, and b. the "height" of the satellite in the orbit from the surface of the Earth in miles.

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Solve the integration : -K xp

- Figure above shows the cross section of a wall made of two layers. The thickness of the 2 nd layer is L2= 0.70L1. The thermal conductivities of the layers are 0.25 and 0.75 W/mK, respectively and thermal conduction is steady. If the temperatures at inlet and between the layers are Ti = 30.0°C and T=8 °C, respectively; what is the outside temperature To for unit area?

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