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Physics

Uncover the laws that govern the universe, from the smallest particles to the vastness of space. Physics seeks to explain the fundamental mechanisms of the natural world.

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Questions
Q: Why can't the moment of inertia be calculated from the formula i 1/2 mr2 for the cylindrical can
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Q: Why can't trains stop quickly
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Q: Why can't trains stop suddenly
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Q: Why can't viruses be seen with a light microscope
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Q: Why can't we directly observe black holes
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Q: Why can't we feel the Earth moving
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Q: Why can't iron be fused to release energy
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Q: Why can't kinetic energy be greater than potential energy
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Q: Why can't kinetic energy be negative
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Q: Why can't kinetic energy exceed potential energy
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Q: Why can't light escape a black hole
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Q: Why can't perpetual motion machines work and what are the fundamental laws of physics that prevent their existence
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Q: Why can't quantum entanglement be used for communication
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Q: Why can't stars fuse iron, leading to their eventual collapse and supernova explosion
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Q: Why can your body conduct electricity
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Q: Why can't I feel the Earth spinning
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Q: Why can't I open the soda bottle
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Q: Why can't a magnet pull a car
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Q: Why can't a submarine go to the bottom of the ocean
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Q: Why can't anything travel faster than light
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Q: Why can't carbon-14 dating be used on dinosaur remains, and what alternative methods are used to determine the age of dinosaur fossils
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Q: Why can't energy be created
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Q: Why can some bugs walk on water
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Q: Why can the fusion of iron into heavier elements not support a star
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Q: Why can we see light
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Q: Why can we see objects because light is present
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Q: Why can we see the moon because it reflects sunlight
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Q: Why can we see the sun
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Q: Why can you balance an egg on a nail at the equator
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Q: Why can you relight a candle from the smoke
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Q: Why can you see someone clearly through a clear glass window but not through a frosted glass window
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Q: Why can light change materials in different ways
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Q: Why can metal conduct electricity
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Q: Why can money be used as an analogy for energy, and how do these statements explain the relationship between the two
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Q: Why can nothing be faster than light
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Q: Why can nothing go faster than light
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Q: Why can nothing travel faster than light
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Q: Why can planes fly upside down
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Q: Why can quantum entanglement not be used for communication
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Q: Why can small animals survive falls
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Q: Why can an iron core not support a star
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Q: Why can an object with a nonzero mass never travel as fast as the speed of light
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Q: Why can angular momentum not be conserved if an external torque is applied to a rotating object
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Q: Why can ants lift so much weight
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Q: Why can bugs walk on water
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Q: Why can ferromagnetic materials become magnets and how does this process occur
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Q: Why can iron filings be used to visualize a magnetic field
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Q: Why can iron fusion not support a star because of iron
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Q: Why can light cause materials to change
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Q: Why aren't bullets sharp
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