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A friend places his 14 kg briefcase on your table, and then pulls it by a string with a force of 49 N at an

 A friend places his 14 kg briefcase on your table, and then pulls it by a string with a force of 49 N at an angle of 36 degrees above the horizontal. Calculate the magnitude of the normal force exerted on the briefcase by the table. (Round to the nearest tenth of a Newton)

A friend places his 11 kg briefcase on your table, and then pushes down on it with a force of 46 N at an angle of 28 degrees below the horizontal. Calculate the magnitude of the normal force exerted on the briefcase by the table. (Round to the nearest tenth of a Newton)

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