Thursday

February 23, 2017
Total # Posts: 16

**Chemistry**

If 8.723 grams of sodium bicarbonate are dissolved in water to produce a 250.0mL solution, what is the molarity of this solution?

*October 10, 2016*

**Math**

Mr. Kasberg rides his bike at 6 mph to the bus station. He then rides the bus to work, averaging 30 mph. If he spends 20 minutes less time on the bus than on the bike, and the distance from his house to work is 26 miles, what is the distance from his house to the bus station?

*January 26, 2016*

**Physics**

A steel piano wire, of length 1.0 m and mass 4.4 g is stretched under a tension of 650.0 N. What is the speed of transverse waves on the wire?

*May 6, 2013*

**Physics**

A steel piano wire, of length 1.0 m and mass 4.4 g is stretched under a tension of 650.0 N. What is the speed of transverse waves on the wire?

*May 6, 2013*

**Physics**

A transverse wave traveling in a string takes 1.61 s to move 13.2 m. The mass of a 9.2 m piece of the string is 1.5 kg. What is the tension in the string?

*May 6, 2013*

**Chemistry**

Determine how much of a 0.780M K2Cr2O7 solution is required to completely dissolve 4.70g of Cu

*December 5, 2012*

**Differential Equation**

Determine if the following pair of functions is linearly independent or dependent on (-infinity sign, infinity sign): f(t) = e^(3x) and g(t)=xe^(3x)

*July 14, 2012*

**Differential Equation**

Solve the following initial-value problem: y"+6y'+5y=0; y(0)=0. y'(0)=3

*July 14, 2012*

**Differential Equation**

Find the general solution of y"-3y=8e^(3t)+4sint

*July 14, 2012*

**Differential Equation**

Find the general solution of y"+4y'-2y=0

*July 14, 2012*

**Differential Equation**

Find the general solution of (D^2-3D+2)(D-5)^Dy=0. (Hint:Use the auxiliary equation)

*July 14, 2012*

**Differential Equation**

Find the general solution of t^2y"-3ty'+4y=0 on (0, infinity sign, given that Y1=t^2 is a solution

*July 14, 2012*

**Chem**

Bromine melts at -7.25 degree C and boils at 58.8 degree C. The enthalpy of fusion of bromine is 10.57 kJ/mol and the enthalpy of vaporization of bromine is 29.96 kJ/mol. The specific heat of liquid bromine is 0.474 J/g∙K. How much heat, in kJ, is required to convert 25....

*September 2, 2011*

**algebra**

Find all numbers for which the rational expression is undefined. r^3-8r/r^2-25

*May 30, 2010*

**12th grade**

i need information about the virginia plan but it has to be more on a college

*January 23, 2010*

**12th grade**

i need information about the virginia plan but it has to be more on a college levle

*January 23, 2010*

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