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Q1. You are driving home from school steadily at 95 for 150 . It then begins to rain and you slow to 62. You arrive home after driving 2 hours and 20 minutes. How far is your hometown from school? What was your average speed?

Q2. At 21.5°C, an aluminum ring has an inner diameter of 9.000 0 cm and a brass rod has a diameter of 9.030cm.
If only the ring is warmed, what temperature must it reach so that it will just slip over the rod?

If both the ring and the rod are warmed together, what temperature must they both reach so that the ring barely slips over the rod?

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Category:- Physics
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