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If you double the length and width how does that effect the perimeter?
You would also double the perimeter.
Which cannot be used to make a frequency table with intervals?
You cannot use a screwdriver, nor a nuclear reactor! I also recommend against using a space shuttle or anything explosive.
Does the perimeter of a rectangle change when you double the dimensions?
Yes. The perimeter is a measure of the combined length of all the sides. If you double the lengths of the sides then naturally this will also necessarilychange the perimeter (it will double the perimeter).
What is the meaning of sharp notes?
Sharp notes are previously natural notes which have been raised a half step, flat notes are the exact opposite, they are notes that have been lowered a half step. The black notes are both sharped notes and flatted notes depending on the context. Double sharped notes are previously natural notes which have been raised a full tone (for example C double sharp is the note C raised a full tone, which will sound the same as D). Double flatted notes mean the exact opposite, so E double flat is the note E lowered a full tone, which also sounds like D. Notes that are written differently but have the same pitch are called enharmonic notes. C double sharp and E double flat both sound like D.
When a sound wave passes from air into water do you expect the frequency wavelength to change?
The speed of the wave increases, the frequency remains constant and the wavelength increases. The angle of the wave also changes.
