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INTEGER:16. If 20 gm of water at 50°C is mixed with 60 gm of water at 10°C. Then final temperature of themixture is

Answer»

Energy loss by hot water = Energy gain by cold water

Let final temperature of mixture be tThen20x(50-t) = 60x(10+t)1000-20t = 600 + 60t40t = 400t = 10

a ball is released from the top of a tower of height h metre it takes T second. what is the position of the ball above the ground in T/5 second?



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