Tension is a state of mental or emotional strain caused by stress, uncertainty or conflict. It builds through pressure, expectations or opposing forces. Physical tension tightens muscles and affects the body. Emotional tension creates anxiety and unease. It can arise ...
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The Doppler effect is the change in frequency or wavelength of a wave due to the motion of the source or observer. When the source moves toward the observer the frequency increases and the wavelength decreases. When it moves away ...
Frequencies measure how often something happens within a specific period. They are used in physics, engineering, music, and communication. In sound, they determine pitch. In radio, they help transmit signals. Higher frequencies mean shorter wavelengths. Lower frequencies travel farther. Measured ...
A traveling wave is a disturbance that moves through a medium or space, transferring energy without transporting matter. It can be mechanical or electromagnetic and propagates with a specific speed, frequency, and wavelength. Examples include water waves, sound waves, and ...
The speed of sound depends on the medium through which it travels. In dry air at 20°C it is about 343 meters per second. It moves faster in solids and liquids than in gases because particles are closer together. Temperature ...