How many joules of heat are required to raise the temperature of 50 g of
water from 100 C to 160 C? (Use 1 sig fig and label your units)
1 point
Nyour answer
2 points
How many calories are given off when 85 g of steam condense to liquid
water? (heat of vaporization = 539.4 cal/g, use 2 sig figs, label units)

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.

i think it's c. i'm not sure but i think so.

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