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HSC - পদার্থ বিজ্ঞান ২য় পত্রঅধ্যায়-০১ঃ তাপগতিবিদ্যাAll Topics

When 55 liter water is heated by a 500 W500\ W immersion electric water for 77 minutes the temperature of water is raised from 30C30^\circ C to 40C40^\circ C. What is mechanical equivalent of heat?

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