![]() ![]() Okay, for the second case again, we are going to get some intense levels, and this is the value we are asked to find. Let'S put some 1 here in the interstell for the first intent case. The second intends to value as i 2, which is just 1 fourth or 1 quarter of the initial intensity. Now this sound way is reflected by some material, but after reflection, it lost 3 quarters of its initial intensite. In this problem, we are given the following statement: we have the sound wave carrying some intense step- let's say i 1, and there is is associated in times to level as i ad just 50, these for its initial interest. What are the approximate wavelengths of sound with which the California sea lions communicate? The speed of sound in sea water is approximately 1,500 m/s. California sea lions communicate underwater at frequencies ranging from 500 to 4,000 hertz. Wave X has a frequency of 200 hertz and a wavelength of 35 meters. Two similar waves X and Y travel through the same medium. If the speed of sound is approximately 330 m/s, what frequencies of thunder can humans hear?ģ. These correspond to wavelengths ranging from 2.75 to 16.5 meters. Humans can hear thunder at different frequencies. A wave travels at 1,500 m/s with a frequency of 5 hertz. This is because (a) sound travels faster than light (b) since sound > light, sound diffracts more than light (c) sound is not reflected by buildings (d) sound and light interfere, with sound winning out.ġ. Light and sound are both waves yet we can hear a car that is coming from behind the corner of a building before we can see the car. The SIL of the reflected wave is (a) 75 dB (b) 47 dB (c) 44 dB (d) 25 dB (e) 12.5 dB.ĥ. A sound wave with SIL = 50 dB is reflected by a cloth-covered wall that absorbs 75% of its intensity.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |