Author: Tru Physics
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How much energy is required to lift a person off the ground…
How much energy is required to lift a person off the ground, and how does that compare to the energy output of a power plant?
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How fast do you need to throw a rock for it to leave the Earth’s orbit…
How fast do you need to throw a rock for it to leave the Earth’s orbit and how does that compare to the top speed of a Lamborghini?
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Newton’s First Law
An object at rest will remain at rest, and an object in motion will continue in motion with a constant velocity, unless acted upon by a net external force. In simpler terms, this means that objects tend to maintain their state of motion or rest until something acts on them. This law is one of…
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Gravitational Potential Energy
Gravitational potential energy is a form of potential energy that an object possesses by virtue of its relative location within a gravitational field. When an object is lifted against the force of gravity, work is done on the object, and gravitational potential energy is stored in the object. Formula for Gravitational Potential Energy The formula…
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Kinetic Energy
Kinetic energy is a type of energy that an object possesses due to its motion. When an object is in motion, it has the potential to do work, and kinetic energy is the energy associated with this potential. Formulas for Kinetic Energy The formula for translational kinetic energy is: where KE is the translational kinetic…
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How many lightning bolts of energy…
How many lightning bolts of energy are equivalent to an atomic bomb?
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How long would it take to walk around the world…
How long would it take to walk around the world, and how does that compare to the age of the universe?
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How much energy is required to launch a satellite into orbit…
How much energy is required to launch a satellite into orbit, and how does that compare to the energy output of a lightning bolt?
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How much force is required to pull a train…
How much force is required to pull a train, and what factors affect the amount of force required?
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Problem 1.15 – Griffith’s Intro to QM
Problem 1.15 Show that for any two (normalizable) solutions to the Schrödinger equation (with the same ), and . Solution: