Paragraf Tamamlama 57. Soru

Bu Testin Birincisi Bengu

100 %

57.

The speed of sound is generally placed at 1088 fret per second at sea level at 32F. However, it varies at other temperatures and in different media. …………. . Thus, if in air it travels a mile in 5 seconds, it does a mile under water in 1 second, and through iron in half a second.

When a plane breaks the sound barrier, it means it's flying faster than sound

The speed of sound can be measured using modern equipment

Sound travels faster in water than in air, and even faster in iron

We use the prefix Mach in order to describe supersonic speed

Any sound which is over 120 decibels is painful to the ear

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