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Q. When you take a bath, how many kg of hot water (49 oC) must you mix with cold water (13 C) so that the temperature of the bath is 36 oC? The total mass of the water (hot and cold) is 191-kg.

Q. A 562-N truck is placed on an inclined plane that forms a 66 degree angle with the horizontal. Compute the values of N and Wx.

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