Recent content by ~DarkAngel

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    High School Questions out of curiosity… Enlighten me please

    These questions just popped out of my head while we were gazing the sky with my friend… Can anyone please help me? 1. Are the shapes of the moon likely to be visible in the morning than in the evening? If it is, then where is the sky? 2. Are the shapes of the moon likely to be visible in the...
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    Net Force on Paperweight: Help with Homework

    ^ Oh ok, so that means the net force is zero? Is that right? Please correct me... And F_ext and F_s have the same value, 2.943 N?
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    Net Force on Paperweight: Help with Homework

    So does that mean the force of 2.943 N in the horizontal direction will make the paperweight move? And if it does, then there's just one force acting on the paperweight, making it the net force? The net force is the sum of all forces acting on the object, so that means 2.943 N is the net force...
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    Net Force on Paperweight: Help with Homework

    That's another problem, I don't know how to make the free body diagram... Can anybody help me? And see if my answers are right?
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    Net Force on Paperweight: Help with Homework

    Homework Statement A decorative paperweight of mass 0.50 kg. sits on a desktop. The coefficient of friction is 0.60. a) How much force in the horizontal direction is needed to make the paperweight just move? b) What is the net force on the paperweight at the instant it begins to move...
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    Analysis about the First and Second Law of Thermodynamics

    Hi guys! Can anyone please help me with these questions about the 1st and 2nd Law of Thermodynamics? First Law of Thermodynamics 1. An inventor has designed an electric car in the following manner. Batteries in the car power an electric motor that drives the vehicle. When the car coasts...