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Q. Two guy wires run from the top of a pole 2.40 m tall that supports volleyball net. The two wires are anchored to the ground 2.00 m apart and each 2.00 m from the pole. The tension in each wire is 85N. What is the tension in the net, supposed horizontal and attached at the top of the pole?

Q. An astronaut weighs 7*10^2 N on the surface of the earth (M earth=5.98*10^24 kg). What is her weight 7.70*10^6 m above the earth?

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