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77julia77 [94]
2 years ago
15

A(n) what moves the medium in the same direction as the wave travels.

Physics
2 answers:
Tju [1.3M]2 years ago
3 0

Answer:

A SURFACE wave moves the medium in the same direction as the wave travels.

Explanation:

Each particles of water in an ocean wave moves in a CIRCLE. A transverse wave moves a medium at an OBTUSE angle to the wave.

dimulka [17.4K]2 years ago
3 0

Answer:

Longitudinal waves

Explanation:

If you push or pull one end of a slinky, you can produce a longitudinal wave. The coils in the spring move back and forth in the same direction, or parallel, to the wave's motion. A longitudinal wave vibrates the medium in the same direction as the wave travels.

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What mean by expansion effect of heat<br>​
pishuonlain [190]

Answer:

Explanation:

-Cambio de temperatura

Al calentar un cuerpo la temperatura aumenta

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Cuando un objeto se calienta, su volumen aumenta. Este fenómeno se llama dilatación térmica. Por el contrario, cuando un objeto se enfría, su volumen disminuye, debido a la contracción térmica.

Cuando se calienta un cuerpo, además de cambiar de estado o variar su temperatura, también cambia su tamaño, se dilata.

Por ejemplo, los puentes no se construyen de una única pieza, sino que suelen presentar uno o varios cortes longitudinales, las llamadas juntas de dilatación. Si no existieran esas juntas, los cambios de longitud del puente entre el invierno y el verano o entre el día y la noche acabarían por romperlo.

La dilatación de un cuerpo dependerá del aumento de temperatura que experimente, de su tamaño y de la sustancia de que esté hecho. Cuanto más aumente la temperatura más aumentará su tamaño, lo mismo que cuanto mayor sea, mayor se hará.

Todos los cuerpos, ya sean sólidos, líquidos o gaseosos, varían su tamaño cuando intercambian calor con otro cuerpo.

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Si una sustancia modifica el estado de sólido, líquido o gaseoso, se produce un cambio de estado. Un cambio de estado es una modificación en la forma en que se disponen las partículas que constituyen una sustancia.

El estado en que se encuentre un cuerpo depende de la presión a la que está sometido y de su temperatura. Para cambiar su estado se debe modificar alguna de estas variables, o ambas. Al elevar la temperatura de una sustancia sólida, aumenta la agitación de sus partículas.

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