elliehemms6324
17.02.2020 •
Physics
A 35 g ice cube at -10C is added to 110 g ofwater in a 62 g aluminum cup. The cup and thewater have an initial temperature of 23 0C. a) Find theequilibrium temperature of the cup and its contents. b) Suppose thealuminum cup is replaced with one of equal mass made from silver.Is the equilibrium temperature with the silver cup greater than,less than, or the same as with the aluminum cup
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Ответ:
0.73m
Explanation:
Given parameters:
W1 = 220N
D1 = 0.6m
W2 = 180N
Unknown
D2 = ?
Solution:
The torque on each side must be balanced;
Torque = force x distance
T₁ = T₂
W1 x D1 = W2 x D2
Insert the parameters and solve for D2;
220 x 0.6 = 180 x D2
132 = 180D2
D2 =
= 0.73m