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7. A 1000 kg wrecking ball hangs from a 15 m long cable. The ball is pulled back until the cable makes an angle of

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7. A 1000 kg wrecking ball hangs from a 15 m long cable. The ball is pulled back until the cable makes an angle of 25" with the vertical. By how much has the gravitational potential energy of the ball changed? (A picture might help you here. Here is what one should look like) (answer: 13720 J) 25' 15 m Find this using SOHCAHTOA Subtract that number from 15m to find the height it Then solve for PE rose to

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