A piece of metal weighing 46.913 g was heated to 98.6°C and then put it into 162.4 g of water (initially at 23.7 °C). The metal and water were allowed
to come to an equilibrium temperature, determined to be 27.8°C.
Assuming no heat lost to the environment, calculate the specific heat of
the metal. As indicated in the problems above, the specific heat of liquid
water is 4.18 J/gºC.
0.204 J/gºC
0.838 J/gºC
3.44 J/gºC
04.08 J/gºC

answer: the figure is attached herewith.

step-by-step explanation:   we are given to sketch a unit circle and label the terminal points corresponding to

in the attached figure, we have drawn a unit circle, with centre at o(0,0) and radius 1 unit. we have labelled the points a, b, c, d and e corresponding to the angles below

∠aox = 60°,

∠box = 120°,

∠cox = 180°,

∠dox = 240°,

∠eox = 300°.

and the coordinates are a(0.5,1), b(-0.5,1), c(-1,0), d(-0.5,-1) and e(0.5,-1).

thus, the answer is complete.

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