Recent content by Wasseem92

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    Isotropic crystals & anisotropic crystals

    Alright my question is: why do single crystals properties vary with direction (anisotropic) when it is a perfect crystalline structure. I mean doesn't that mean that the atoms are ordered correctly so shouldn't that mean that at every direction its the same magnitude? I really need help because...
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    Angular Momentum and Angular kinetic energy about the center of the sun.

    Homework Statement The Earth is approximately 1.5x10^8 km from the sun. what is the Earth's angular momentum about the center of the sun. Note the mass of the Earth is 5.97x10^24. Homework Equations The Attempt at a Solution I got the answer, but my question is, when finding the...
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    Understanding Torque Balance and Center of Gravity in a See-Saw

    alright man thank you a lot! that really helped!
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    Understanding Torque Balance and Center of Gravity in a See-Saw

    A poorly constructed see-saw has a fulcrum 2/3 of the way along its length. a) If the see-saw weighs 30 kg, where would a 20 kg child have to sit in order to balance the see-saw? b) What is the least mass that a child must have in order to balance the see-saw? well i tried solving this question...