Recent content by cuddlesome

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    Undergrad Why Does Ball-to-Viscometer Diameter Ratio Matter in Viscosity Measurements?

    We had a experiment on a metal ball dropped on a Falling sphere viscometer containing a certain liquid(I forgot what was it). I just don't know why our professor asked us to get the ratio of the spherical metal ball's diameter and the diameter of the Falling sphere viscometer and plot the...
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    Analysis of Truss Structure: Horizontal Component at Hinge?

    diagram:http://instruct1.cit.cornell.edu/Courses/ansys/truss/images/truss.jpg Will there be a horizontal force component at A?
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    Analysis of Truss Structure: Horizontal Component at Hinge?

    If the loads are all vertical in a truss, will there be horizontal component on the hinge of the given truss? Does the presence of the horizontal component depends on the design of the truss?
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    High School Why do airplanes pressurize their cabins?

    Why do airplanes pressurize their cabins?
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    Undergrad Geometric Optics: Can Virtual Objects Form Images?

    is it possible to have an virtual OBJECT in image formation?
    • cuddlesome
    • Thread
    • Geometric Geometric optics Optics
    • Replies: 11
    • Forum: Optics
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    Magnetic field due to negative charge

    I hope you could help me out with this... A negative charge q=-7.20mC is moving in a reference frame. When the point charge is at the origin the magnetic field it produces at point (25.o cm,0,0) magnetic field is B= (6.0 x10^(-9)T) j("unit vector") and its speed is 800 m/s . what is the...