Question: A robotic rover on Mars finds a spherical rock with a diameter of 10 centimeters. The rover picks up the rock and lifts it 20

A robotic rover on Mars finds a spherical rock with a diameter of 10 centimeters. The rover picks up the rock and lifts it 20 centimeters straight up. The rock has a specific gravity of 4.75. The gravitational acceleration on Mars is 3.7 meters per second squared. If the robot's lifting arm has an efficiency of 40% and required 10 seconds to raise the rock 20 centimeters, how much power (in watts) did the arm use?

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