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9. Mathavan used the air filled rubber tube to move from one side of the pond to another endof the pond. What is the principle held here?10. At Malini's home in Madurai, it takes 2 minutes to cook noodles. It takes 5 minutes tocook in her friend Nalinis' home at Kodaikanal. Why?him cylind1. Ramu is trying to move a heavy stone across the ground. His father gaverods to help him move it. Give reason |
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