Wednesday
June 19, 2013

# Posts by Lydia

Total # Posts: 148

physics
At a picnic, a Styrofoam cup contains lemonade and ice at 0 degree C. The thickness of the cup is 2.0*10^-3m, and the area is 0.016 m^2. The temperature at the outside surface of the cup is 35 degree C. The latent heat of fusion for ice is 3.35*10^5 J/kg. What mass of ice melt...

PHYSICS!!!HELP！！
I don't really get the last part...so that times 3600 = Joules gained to melt ice in one hour. Now kg melted = Joules gained/ heat of fusion in Joules/ kilogram Please explain.

PHYSICS!!!HELP！！
At a picnic, a Styrofoam cup contains lemonade and ice at 0 degree C. The thickness of the cup is 2.0*10^-3m, and the area is 0.016 m^2. The temperature at the outside surface of the cup is 35 degree C. The latent heat of fusion for ice is 3.35*1065 J/kg. What mass of ice melt...

math
I don't understand how to write the formulas for unit analysis. I can do the problems, but the explanation of the formulas in my book doesn't make sense with the problems I am doing. For instance, this one: Find the unit rate: \$2 for 5 cans of vegetables. I know it is ...

government
oh, but can't you call communism government?

government
Hello there. I was wondering if someone could please tell me whether or not you could call a government totalitarian and communism? We're studying Sparta (from ancient Greece) and our teacher said it was totalitarian and later she said it was communist-like. Am I allowed t...

precalculus
State the domain and range of the function. y=the cubed root of (x-2) Thanks SO much!

psychology
Thank you so much!!!!!!

psychology
I know what the definitions are, but there is so much going on in the problem that I've gotten confused- dv- a person's frustration and aggression?, iv-socioeconomic status? experimental group- the two types of cars? no control group?

psychology
what would the dependent and independent variable and control and experimental group be in this problem: John is intrigued by the relationship between frustration and aggression. He proposes to study whether socioeconomic status is a factor in how drivers express their aggress...

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