Recent content by camel-man

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    Dividing Polynomials: How to Solve (4s^3+4s^2+72)/(s+3)

    YEs that was the problem! thank you Fourier jr
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    Dividing Polynomials: How to Solve (4s^3+4s^2+72)/(s+3)

    Mod note: Moved from a technical math section, so missing the template. I have this question and the answer but my mathXL does not show me how it came to this conclusion. (4s3+4s2 + 72)/ s+3I got all the way to the answer 4s2 - 8s The correct answer is 4s2 - 8s + 24 I just don't know the...
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    Undergrad Differences Between Doppler Effect Formulas: u & f´

    Thank you so much PAllen
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    Undergrad Differences Between Doppler Effect Formulas: u & f´

    u = (v + u') / (1 + v u' / c2) f´ = f √ [ ( 1 + v / c) / ( 1 – v / c) ]What are the difference between these two formulas? My formula sheet doesn't specify the two. I believe one of them has to do with doppler effect.
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    Snell's Law: Dispersion Light Angle Refraction

    Homework Statement A red beam of light in air enters crown glass at an angle of 60.00 to the normal. Find the angleof refraction. Repeat for a violet beam oflight entering crown glass (same angle). Homework Equations Not too sure, I believe I would use Snells law here.. does that sound...
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    Calculating Magnetic Force on a Moving Charge

    I am assuming that it would be F = qvBsin(theta) for the simple fact that I don't know the electric field vector... would that be a correct assumption?
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    Calculating Magnetic Force on a Moving Charge

    Homework Statement Considera 1.0 C charge moving with a velocity of v = -2.0i + 2.0j - 1.0k in a magnetic field of B = -4.0i + 1.0j – 3.0k. What force is this charge experiencing? What is the angle between the velocity and magnetic field vectors? Homework Equations F = q(E + v x B)...
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    Mass-to-Charge Ratio of an Ion in Mass Spectrometer

    Homework Statement Consider fields of 1.4e5 N/C and 2.7 T within a velocity selector. If the charge then exits and encounters a field of 1.4 T and radius of 2.4 mm within the mass spectrometer, what would be the mass to charge ratio of this ion? Homework Equations v = E/B m = qrB/V[/B] q =...
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    Calculating Magnetic Force: Equations for Moving Charges at Right Angles

    Ahh yes I'm sorry I copy and pasted it over and didn't realize it put a zero. It is 55 degrees. yes.
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    Calculating Magnetic Force: Equations for Moving Charges at Right Angles

    A 3.60 mC charge moving at 862 m/s travels at right angles to a magnetic field, and experiences a .00425 N magnetic force. Find the strength of the magnetic field. F = qvB (not sure if the right angle makes a difference in the equation.) B= .00425 /(3.60x10^-6)(862) = 1.37 T A 53.0 mC charge...
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    While loop - Variable not changing in C

    == is used for comparison = is used as an assignment operator
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    Parallel plate capacitor problem

    I got this d = 6.97x10^-9 This doesn't seem right to me. This is how I came to that answer... d = εAV/Q and I used 20.0x10^-6 C for the Q at the bottom
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    Parallel plate capacitor problem

    Meters square
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    Parallel plate capacitor problem

    Okay, so I solved for C=εA/d I got 1.26x10^-11 I plugged C into Q=CV and got 2.53x10^-10 does this look right so far? If it is, than I suppose I will factor that into the C=εA/d when trying to solve for finding the separation of 20.0nC
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    Parallel plate capacitor problem

    My thoughts are this.. Use C=εA/d where ε=Kε0 and K=.5mv^2 (what is mass in this case?) so we have multiple unknowns to get to a correct answer. If i can solve for K then I could get C and then plug it into Q=CV to get charge.