Friday

April 18, 2014

April 18, 2014

Total # Posts: 14

**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?

**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?

**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?

**Chemistry**

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

**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)

**Differential Equation **

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

**Differential Equation **

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

**Differential Equation **

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

**Differential Equation **

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

**Differential Equation **

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

**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....

**algebra**

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

**12th grade**

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

**12th grade**

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

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