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    John Marisa

    Student at Arusha Day Secondary School in Themi Street

    Activities timeline


    John Marisa 9 months ago

    Commented on Zainab Hella's Post in Mathematics Discussions

    Zainab Hella Posted 1 year ago

    Discussion posted in Mathematics Discussions

    Relations

    Guyz i have a debate state that “women are to be blamed for the spread of HIV?”

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    John Marisa 9 months ago

    Commented on Lisa Eliah's Post in Mathematics Discussions

    Lisa Eliah Posted 1 year ago

    Discussion posted in Mathematics Discussions

    Quadratic Equations

     The sum of the ages of musa and his friend is 50years.If ten years ago the age of musa was twice that of his friend .Find their present ages.

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    John Marisa Posted on 9 months ago

    Mussa 40 and friend 20

    John Marisa 9 months ago

    Commented on Omary Singano's Post in Mathematics Discussions

    Omary Singano Posted 1 year ago

    Discussion posted in Mathematics Discussions

    Decimal And Percentage

    How many decimal places does a number 34•907 has

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    John MarisaPhoto
    John Marisa Posted on 9 months ago

    3

    John Marisa 9 months ago

    Commented on Mark Owden's Post in Mathematics Discussions

    Mark Owden Posted 1 year ago

    Discussion posted in Mathematics Discussions

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    John Marisa Posted on 9 months ago

    3+or-3-radic a all over a

    Lazaro Machunda Posted 1 year ago

    Discussion posted in Mathematics Discussions

    Sequence And Series

    The 4th,6th,and 9th term of an arithmetic progression from the first three terms of geometric progression.if the first term of a.p is 3 determine i. Common difference of a.p

     

    ii. Common ration g.p

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    John Marisa Posted on 9 months ago

    Common difference=1 and common ratio =4/3

    John Marisa 9 months ago

    Commented on JOHANESS SIGORY's Post in Physics Discussions

    JOHANESS SIGORY Posted 11 months ago

    Discussion posted in Physics Discussions

    Simple Machines

    why a screw jack normally have an efficiency less than 50%

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    John Marisa Posted on 9 months ago

    Friction reduces the efficiency of a machine

    John Marisa 9 months ago

    Commented on JOHANESS SIGORY's Post in Physics Discussions

    JOHANESS SIGORY Posted 11 months ago

    Discussion posted in Physics Discussions

    Pressure

    Why is a tractor designed to have large wheels

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    John MarisaPhoto
    John Marisa Posted on 9 months ago

    In order to apply large pressure in pulling objects on the surface

    John Marisa 9 months ago

    Commented on Masuku Kwegela's Post in Physics Discussions

    Masuku Kwegela Posted 10 months ago

    Discussion posted in Physics Discussions

    Electromagnetism

    Electromagnetism is actually an electro-magnetic concept in which involves the production of magnetic fields by allowing current to flow through a conductor for a certain time. With concepts such as right hand grip rule involved in the explanation process of how magnetic result from the electric field. 

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    John Marisa Posted on 9 months ago

    When electricity pass to magnetic field it may demagnetize the magnet and this is how it results

    John Marisa 9 months ago

    Commented on Violet Willy's Post in Physics Discussions

    Violet Willy Posted 9 months ago

    Discussion posted in Physics Discussions

    Measurement

    differenties between mass and weight

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    John MarisaPhoto
    John Marisa Posted on 9 months ago

    Mass is measured by a beam balance while weight is measured by spring balance

    John MarisaPhoto
    John Marisa Posted on 9 months ago

    Mass is a scalar quantity but weight is a vector quantity

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