01/24/16

Physics Help Please!
Two point charges, Q1 = 3.7 μC and Q2 = -1.3 μC, are placed on the x axis. Suppose that Q2 is placed at the origin, and Q1 is placed at the coordinate x1 = -5.0 cm.(a) At what point(s) along the x... more
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01/22/16

Determine the capacitance of this capacitor. Determine the area of each plate.
The electric field between the plates of a paper-separated (K=3.75) capacitor is 8.25×104 V/m. The plates are 2.15 mm apart, and the charge on each plate is 0.670 μC.   (a) Determine the... more
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01/18/16

Velocity and Air Resistance
From a Coffee Filter experiment   Why do two coffee filters reach a higher velocity in free fall than one coffee filter? 
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01/13/16

HIgher Derivatives and Applications
Which point on the curve y-x^2 is nearest to the point (3,0)?
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12/27/15

Find an equation of the tangent line to the astraoid at the (3(3)^1/2, 1)
Find an equation of the tangent line to the astraoid at the (3(3)^1/2, 1)   x2/3 + y2/3 = 4
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11/28/15

Write the augmented matrix associatied with the system. Do not solve the system
{7x+4y+7z=74 {3x+7y+5z=51 {2x+2y+9z=71   All 3 rows in one {
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11/21/15

find the partial fraction decomposition of the equation.
(9x^2-9x+6)/(2x^3-x^2-8x+4)   find the partial fraction decomposition of the equation. 
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11/18/15

finding cylinder mass using triple integrals
Hi, I'm trying to find mass of a cylinder using triple integrals.The data I have: - height = h- base is a circle and its radius = a- the density in a point P is directly propotional to the distance... more
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11/18/15

Find dimensions to minimize cost of box
A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $5 per square foot and the metal for the sides costs $2 per square foot.... more
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11/17/15

How do you balance the chemical equation ___FeCL3+___Na)H=>___Fe(OH)3+_____NaCL
How do i do this? What numbers do i put, how do i know what to put?
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11/09/15

I'm a little confused as to how I solve this.
The number of guests g in a water park t hours after 9 am is given by g(t) = –32t2 + 224t + 263 for 0 ≤ t ≤ 8. (t = 0 corresponds to 9 am)Find and interpret the average rate of change of g over the... more
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10/31/15

Calculus Question
A company runs food service concessions for sporting events throughout the country. Their marketing research department chose a particular football stadium to test market a new jumbo hot dog. It... more
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10/30/15

Car have mass m,its engine delivers power P.what's the minimum time in which car can be accelerated from rest to speed v
A car of mass m has an engine which can deliver power P.The minimum time in which car can be accelerated from rest to a speed v is(a) (mv^2)/2P(b) Pmv^2(c) 2Pmv^2(d) (mv^2)P/2
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10/23/15

There are 2 tangent lines to the parabola y = x^2 that pass through the point (0, -4). Find the coordinates of the points where these tangent lines intersect..
There are two tangent lines to the parabola y = x2 that pass through the point (0, -4). Find the coordinates of the points where these tangent lines intersect the parabola.   I know the equations... more
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10/22/15

How fast will the pin move immediately after it is hit?
The rolling bowling ball strikes a pin (m = 1kg), sending it flying. How fast will the pin move immediately after it is hit? (Think: what equation should you use?)   Show work please.
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10/18/15

Mole fraction of methane and ethane?
a mixture of methane CH4 and ethane C2H6 is stored in a container at 294 mmHg. The gases are burned in air to form CO2 and H2O. If the pressure of CO2 is 343 mmHg measured at the same temp and... more
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10/12/15

what is the integrating factor of e^y dx + e ^x dy = 0
Supposed to find using inspection method
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10/12/15

How do you convert the equation x+y=2x to a polar equation?
Would the answer just be rsintheta=rcostheta?
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10/10/15

find A-1 inverse
3x+3y-2z=4- -3x+2y+3z=1 x-y-z=-2   a)find inverse b)use the inverse to solve the system
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10/10/15

List the 4 sublevels and number of electrons each can hold
I need help with electron configuration because i don't get it and my work is due on monday so please reply as soon as possible 
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10/09/15

If a wavelength is .089 nanometers, how much energy is it giving off in Joules per mole?
A wavelength of light is 0.089 nm.  How many Joules per mole is it giving off.   I got 3.79 *10-39 J/mol   but I don't think that's right.
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09/30/15

What is the pH of a solution containing 0.3 g/L OH-?
What is the pH of a solution containing 0.3 g/L OH-?
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09/29/15

real and imaginary solutions
Find all real and imaginary solutions to the equation n^3-8n^2-nt8=0 
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09/28/15

find an equation of the tangent line to the curve at the given point y=2e^x+x (0,2)
Please help
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09/26/15

Limiting reactant problem, chemistry?
Can you please check my answers?   What is the maximum mass of hydrogen gas that can be produced from 5.70 g SrH2 and 4.75g H2O?    SrH2 (s) + 2H2O (l) -----> Sr(OH)2 (s) + 2H2... more
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