Recent content by Axoren

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    There is a linear transformation from P1 to P1

    Haven't slept in 3 days, the other day, I was trying to calculate the cross product of two vectors in R5. What's worse, is I ended up with an answer. Close this, the answer's 4 + 2x.
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    There is a linear transformation from P1 to P1

    Homework Statement There is a linear transformation T from P1 to P1 where P1 is the set of all polynomials of degree at least 1. T(1 + 2x) = 2 + 4x and T(4 + 7x) = -2 + 2x Find T(-3 - 5x).Homework Equations T(1 + 2x) = 2 + 4x T(4 + 7x) = -2 + 2x The Attempt at a Solution Basis B1 = [1, 2]...
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    Linear Algebra Help, Area and Volume using Vectors

    Thank you very much. That works wonderfully.
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    Linear Algebra Help, Area of a Parallelogram using vectors

    I didn't depend on the cross product and started using other equations around the internet. I provided them in the original post.
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    Linear Algebra Help, Area of a Parallelogram using vectors

    I got it, some how. Updated original post.
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    Linear Algebra Help, Area and Volume using Vectors

    I find the answer to be 7, however, Webwork says it's incorrect. I've tried plugging in -7, still nothing.
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    Linear Algebra Help, Area of a Parallelogram using vectors

    You can't perform cross product on vectors outside of R^3
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    Linear Algebra Help, Area and Volume using Vectors

    I tried that just now and it doesn't work. Is there really no way to answer this question?
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    Linear Algebra Help, Area of a Parallelogram using vectors

    Homework Statement Find the area of the parallelogram defined by the vectors v = {1 1 3 1} w = {-2 -1 2 2} Homework Equations Area = v dot w * sin(theta) theta = cos^-1(v dot w / |v|*|w|) The Attempt at a Solution Solved General Solution: Area of a parallelogram for non-R^3 vectors = v dot...
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    Linear Algebra Help, Area and Volume using Vectors

    Homework Statement Find the volume of the parallelepiped defined by the vectors. x = {2, 0, 1, 1} y = {-1, -1, 1, 1} z = {-2, 3, 1, -2}Homework Equations Don't know.The Attempt at a Solution Don't know where to start.The main problem is that most people on the internet only discuss three...
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    Tipping Force, Torque, Coefficient of Desperation

    Homework Statement Some moron kids are trying to tip over a storage bin as shown. The bin weights 6950 N, w = 1.8, h = 2.8, d = 1.85, and theta = 22 degrees. With what force do they need to push in order to tip the bin over? Homework Equations T = R * F * sin(\theta) \Sigma\textbf{T =...
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    Kepler's Law and Non-terrestrial Orbits (Not Earth)

    Homework Statement A satellite orbits a planet at a distance of 6.80 multiplied by 10^8 m. Assume that this distance is between the centers of the planet and the satellite and that the mass of the planet is 3.08 multiplied by 10^24 kg. Find the period for the moon's motion around the earth...
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    Representing Velocity, Acceleration, and Jerking as compressional waves.

    Isn't that transverse waves? I'm doing poorly in physics...
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    Representing Velocity, Acceleration, and Jerking as compressional waves.

    Homework Statement \vec{Velocity} = \DeltaDisplacement/\DeltaTime \vec{Acceleration} = \DeltaVelocity/\DeltaTime \vec{Jerk} = \DeltaAcceleration/\DeltaTime Represent the above as compressional waves. Define their frequency and amplitude as functions. Homework Equations See above...
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    Heat and Internal Energy and Heat and Temperature Change: Specific Heat Capacity

    Thank you very much! I don't know how I missed that.