4. A 3.8 kg sample of an unknown metal is heated to 396°C and then submerged in 1.0 L of 22°C water. The final temperature of the metal and water both is 89°C. Determine the unknown substance. (5 marks)

Respuesta :

Answer:

By composing the vector a = [15 x - 12 y] with the vectors b = [bx - 17 y], c = [- 10x + cy], d = [8 x - 10 y], the result is a vector that only has coordinate on the axis of the

abscissa, and its value is - 12. Determine the module and direction of the vectors b and cExplanation:

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