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Given a 10 Jy source with an occupying 15'' in the sky, at a distance of 1.1 Mpc, observed at 1.4 GHz, determine the brightness temperature of the source.

4) Given a 10 Jy source with an occupying 15" in the sky, at a distance of 1.1 Mpc,
observed at 1.4 GHz, determine the brightness temperature of the source.

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