The two factors that affect resonance are the frequency of the external force applied and the natural frequency of the object or system. When the external force matches the natural frequency of the object, resonance occurs, leading to a significant increase in vibration amplitude.
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The two types of human voice resonance are oral resonance, which occurs in the oral cavity and involves the mouth and throat, and nasal resonance, which involves the nasal passages. These types of resonance affect the quality and timbre of the voice.
The two factors that affect an object's kinetic energy are its mass and its velocity. Kinetic energy is directly proportional to both mass and velocity, meaning that an increase in either of these factors will result in an increase in the object's kinetic energy.
True.
Resonance can affect the loudness of an instrument by amplifying certain frequencies, making certain notes or harmonics sound louder. This can contribute to the overall volume and tone of the instrument.
A double-headed arrow "->" is placed between a molecule's resonance structures to indicate resonance.