Saturday
December 7, 2013

# Posts by leah

Total # Posts: 326

Physics
A 5.0g silver spoon at 20.0C is placed in a cup of coffee at 90.0C. How much heat does the spoon absorb from the coffee to reach a temperature of 89.0C?

Physics
A 5.0g silver spoon at 20.0C is placed in a cup of coffee at 90.0C. How much heat does the spoon absorb from the coffee to reach a temperature of 89.0C?

Pre-Algebra Math
A bank teller is counting his money and notices that he has an equal number of tens and twenties. He also had \$147 in other bills. If the total value of the bills he has is \$1,167, how many tens and twenties does he have What would be the equation in algebra?

Why does the chosen developmental theorist appeal to you? Relate the chosen theory to a recent or upcoming developmental stage or phase in your own life.

math

Five moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 410 to 200 K. (a) What is the work done by (or done to) the gas? Include the algebraic sign. J (b) What is the change in the internal energy of the gas? Include the algebraic sign. J

physics
would it be .55 converted to g times cg of aluminum which according to the link is .90 time the differnece in T which is 660-180

Math
A triangle with two congruent sides and two angles that both mesuare 45 is a. scalence and right b. isosceles and acute c. isosceles and right d.equilateral and acute

Biology
a) How do CO2 and O2 levels in the blood regulate breathing movements? b) Explain how these mechanisms are a good example of homeostasis. Help me please :(

Chemistry
What is the chemical symbol for bromine vapour?

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