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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 is light increasingly redshifted as it approaches a black hole
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Q: Why is light invisible to the human eye
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Q: Why is light not refracted when it is passing through a medium with the same refractive index
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Q: Why is light referred to as electromagnetic radiation and how does it differ from other forms of radiation
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Q: Why is lightning blue
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Q: Why is liquid hydrogen used as rocket fuel
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Q: Why is it that the Earth's geographic north pole is actually a magnetic south pole
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Q: Why is it that the temperature is hotter in summer and colder in winter
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Q: Why is it that we don't feel the Earth spinning
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Q: Why is it that work is negative when it comes to your current job situation
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Q: Why is kinetic energy conserved in elastic collisions
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Q: Why is kinetic energy important in the context of physics and everyday life
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Q: Why is kinetic energy lost in an inelastic collision
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Q: Why is kinetic energy not conserved in inelastic collisions
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Q: Why is knowing the actual shape of raindrops important
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Q: Why is it not possible to make a bomb from reactor grade uranium
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Q: Why is it possible for a bird to sit on a high voltage wire
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Q: Why is it possible to compress a gas
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Q: Why is it safe to sit inside a car during lightning
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Q: Why is it said that flames don't have shadows
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Q: Why is it so bright today
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Q: Why is it that no work is done when the force and the displacement are perpendicular to each other
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Q: Why is it that permanent magnets can never be demagnetized
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Q: Why is it that solid matter is mostly empty space, and what is the reason that solids don't fall through one another
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Q: Why is it impossible to travel faster than light
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Q: Why is it louder at night
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Q: Why is it more challenging to construct a supersonic ship compared to a supersonic airplane
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Q: Why is it more common to see a lunar eclipse than a solar eclipse
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Q: Why is it more difficult to push a box on the floor from rest
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Q: Why is it much more likely to see a lunar eclipse rather than a solar eclipse
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Q: Why is it necessary for circuits to maintain a closed loop
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Q: Why is it necessary to centrifuge blood
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Q: Why is it necessary to put salt in a vaporizer
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Q: Why is it not possible to accurately calculate instantaneous velocity
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Q: Why is it important to let the tea bag float in hot water while brewing
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Q: Why is it important to prioritize self-care
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Q: Why is it important to reduce methane gas in the atmosphere
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Q: Why is it important to save energy
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Q: Why is it important to understand the reasons behind a person's actions
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Q: Why is it important to understand the relationship between time, distance, and speed
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Q: Why is it important to water plants before a freeze
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Q: Why is it important to wear a lead apron during an x-ray procedure
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Q: Why is it impossible to create a perpetual motion machine
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Q: Why is it important to avoid smoke blowing out the window
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Q: Why is it important to be energy efficient
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Q: Why is it important to conserve energy and how can it benefit the environment and future generations
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Q: Why is it important to conserve energy and how can we do so effectively
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Q: Why is it important to conserve energy resources
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Q: Why is it important to conserve energy
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Q: Why is it important to create free body diagrams
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