Recent content by Scientist94

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    How Do You Calculate Kinetic Energy in Relativistic Dynamics?

    Homework Statement A particle of mass m and kinetic energy K strikes and combines with a stationary particle of mass 2m, producing a single composite particle of mass √17 m. Find the value of K Homework Equations E= γmc^2 , p = λmv The Attempt at a Solution I have tried many times...
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    Diffraction at 8 Slits: Evaluating First Minimum Intensity

    Is it something to do with the intensity of the light? i.e the intensity of the maxima directly opposite the 5th slit would be the highest? I'm afraid I don't understand this topic very well.
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    Diffraction at 8 Slits: Evaluating First Minimum Intensity

    Hi The correct answer is 1.44 x 10^-3 radians, which is exactly 4 times the value of my answer, this is the same for the sines. However I do not understand why exactly it is the correct answer. I know the fact that there is 8 slits makes a difference, whereas my method does not include that...
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    Diffraction at 8 Slits: Evaluating First Minimum Intensity

    Homework Statement A system of 8 slits, each separated from its neighbour by 0.05 mm, is illuminated with light of wavelength 576 nm. Using phasor analysis, evaluate at what angle on a distant screen there is the first minimum in intensity. Homework Equations The Attempt at a Solution Ok...
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    MATLAB Plotting atomic orbitals on matlab

    Hi guys I've been having some trouble plotting the p(x) and d(xy) atomic orbitals on Matlab. I have been given that p(x) = x*e^-(x^2 + y^2 + z^2)^0.5 and d(xy) = x*y*e^-(x^2 + y^2 x^2)^0.5 Now I want to plot these orbitals on MATLAB using mesh or the surf command and then plot the...
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    Solve Water Pistol Physics: Find Forces and Speeds

    Force = momentum/time, so the force carried by the jet is equal to pAu^2 which was the answer to one of the first questions, converting A into metres squared this would give force of 0.392N, I calculated max friction to be 0.147N and so the force is sufficient to dislodge the target, hopefully...
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    Solve Water Pistol Physics: Find Forces and Speeds

    Ok, I have attempted the next part, I went about it using a standard projectile motion method and ended up with ucos(theta) = root(5g) and then ended up with u = root(10g) and theta = 45 degrees Using the value of u I get the force on the piston to be 1.96 x 10^(-5) N which seems pretty small...
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    Solve Water Pistol Physics: Find Forces and Speeds

    Ok, so the volume of water ejected per unit time = area x speed = Au Volume of water displaced by piston per unit time = Sv (where v is the speed of the piston) Therefore v = (A x u)/S Then when I sub that into the power equation I get the correct answer. Thanks!
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    Solve Water Pistol Physics: Find Forces and Speeds

    Distance/time = speed , If I use u as the speed of the piston I get power(piston) = F x u and use S instead of A for the power transported by the jet I get the correct answer after equating the two. However how would I know that the speed of the piston is u? And I don't see how they involved S?
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    Solve Water Pistol Physics: Find Forces and Speeds

    Homework Statement B7 State the relationships between (i) force and momentum, (ii) force and energy, (iii) force and power, (iv) power and energy. [2] Find expressions for the momentum and kinetic energy transported per unit time in a jet of fluid having cross-sectional area A, density ρ, and...
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