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Speed is the rate of change in direction, whereas velocity is the rate of change in displacement. This means that an object's velocity has an associated direction whereas its speed doesn't.If a car travel...
The photoelectric effect is the stimulated emission of electrons from a (generally metallic) material upon irradiation with light of sufficient energy (light of a short enough wavelength). The incident ph...
This is an application to Faraday's and Lenz' laws of electromagnetic induction. So as the magnet moves into the coil, the magnetic field from the magnet moves through the coil, therefore there is a chang...
The derivative of distance with respect to time is velocity.
To understand why the water evaporates, we need to know what we mean when we say something has a certain temperature. Temperature is proportional to the average kinetic energy of the microscopic molecules...
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