A hot-water stream at 80 °C enters a mixing chamber with a mass flow rate of 0.5 kg/s where is is mixed with a stream of cold water at 20 °C. If it is desired that the mixture leave the chamber at 42 °C, determine the mass flow rate of the cold water stream. Assume all the streams are at the same pressure of 250 kPa. T₁ = 80°C mt=0.5 kg/s T₂ = 20°C A. 0.840 kg/s B. 0.850 kg/s C. 0.865 kg/s D. 0.880 kg/s H₂O T₁ = 42ºC->> (P = 250 kPa)

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State one word problem and solve it wherein the ideal mechanical advantage of a wedge is being solved. Use the formula, IMA = (Length of the Widge) divided by (Width of the Wedge). note: please do not forget to include your solution in solving the problem.

A.) Sketch:[Draw a sketch that represents the situation of the problem, while showing all the variables included in it (vectors or scalars as forces, , displacement, position, etc.).] B.) Approach:[Mention all the laws, principles or concepts, as well as the mathematical equations that solve this problem. Step by step.] C.)Solution:[Develop the physical or mathematical equations used for the solution of the problem and highlight the partial and final answers. Be clear and organized.]