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4.The mass of an iron rod is 52 g. The density of iron is 7.8 gcm-3 Find the volume of the rod. 5. Describe the method in steps to find the density of a pebble.6.A car covers 80 km in 2 hours and a bus covers 100 km in 5 hours. Which of the two travels faster?​

Answer» 6 Explanation:speed = distance/ time=80/2. 100/5=40. km/h 25 km/ hcar is FASTER than the BUS by 15 km/ h


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