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An object is launched straight up at speed v from ground level, find each of the follwing if the launch speed is trippled? A current of 47 A flows through an electric welder with a resistance of 10 ohms. What power is dissipated in the circuit? Find weight of object hanging from 2 scales, if one reads 58 N, other reads 69 N, and the angle θ between strings is 115 degrees.? Calculate the total resistance of a parallel circuit that has three lighbulbs that offer the following resistance: 17 ohms, 42 ohms, 90 ohms? 1. Find the area of the triangle?