Help Which model of the solar system is shown here?
O O
A. The heliocentric model B. The spherical model
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C. The geocentric model
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D. The universal model

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?