Monday
May 20, 2013

Posts by becky


Total # Posts: 458

College Physics
is k 0.023076923 ?

College Physics
The top layer of your goose down sleeping bag has a thickness of 5.0 cm and a surface area of 1.0 m^2. When the outside temperature is -18 degrees celcius you lose 24 Cal/hr by heat conduction through the bag (which remains at a cozy 34 degrees celcius inside). Assume that you...

College Physics
Nvm. I found the answer :) It's 555 W. (.200 W/m x K)(22m^2)[(19.3-16.4)/0.0230 m]

College Physics
A 2.30-cm-thick wood floor covers a 4.0 m x 5.5 m room. The subfloor on which the flooring sits is at a temperature of 16.4 degrees celcius, while the air in the room is at 19.3 degrees celcius. What is the rate of heat conduction through the floor? Use 0.200 W / m x K for the...

Organic chemistry
You are at isoelectric point for a solution of Leucine. If the number of negatively charged carboxyl ate groups, -COO-, is 1x10^19, how many positively charged amino groups, NH3+, would there be?

college physics
1 and 2 only :)

Chemistry
Why is the solubility of KHTar greater in a 0.10M NaNO3 solution than in distilled water?

Spanish -9th grade-Please check and advise
I figured it out. I could say "Normalmente tengo mucha tarea en la clase."

Spanish -9th grade-Please check and advise
I need to write about my geometry class and what I do in the class. I need to use "la tarea" in the sentence. I'm not sure if I could use this to describe the calculations I do. I'm confused how to even conjugate or use this. Would it start with "Hago la...

math
My mother and I are the same age – only the numbers are reversed (21,12 for example) Twelve years ago my mom was twice as old as me. So how old is my mommy and how old am I?

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