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It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location
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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?
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Đặt điện tích q=2.10-5C tại gốc tọa độ O của hệ trục Oxy. Xét hai điểm A(6;0) và B(3;4) trên hệ trục...
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