7 13.chemistry help please?

"> its overtones are 3n, 5 n, 7n etc. i.e. only odd integral multiples of the fundamental frequency. In the case of a note produced by a drum, if the fundamental frequency is n, the overtones are 1.59n, 2.13n, 2.30n, etc. i.e. they are not harmonics of the fundamental frequency...

King John ruled over England seven hundred years ago. The Abbot of Canterbury was one of the priests in his kingdom. King John was displeased with him because people said that he was richer than the king. So the king summoned him to his court. Scene 1 (Sound of trumpets) Ki..

The sides of a triangle are given by the equations 3x + 4y = 10, 4x - 3y = 5 and 7x + y + 10 = 0. Show that the origin lies with in the triangle. Solution. The given lines are 3x + 4y - 10 = 0 $\ldots\left(i\right)$ 4x - 3y - 5 = 0 ..

x .............(polite, displeased, joy) VI. With the help of your teacher, refer to a dictionary and find the meaning of the following words. e.g. pretty adj. pleasing and attractive hug scent - offer spend VII. Read the first three paragraphs of your lesson carefully. ..

A. Answer these questions. 1. Why was the king angry with the Abbot ? 2. Why did the king ask questions to the Abbot ? 3. What questions did the king ask the Abbot ? What was the condition ? 4. What did the Abbot do to get the answers ? 5. Why was the Abbot sad ? 6. Why did th..

: Then be ready for blowing. Look, what are these ? Joseph : Table-tennis balls. Participant girl : Now, I hang them on a ruler with the help of threads and a cello tape. I keep a distance of about 6 to 7 centimetres between them, o.k. ? (To Janaki) May I know your name, pl..

in C f o ( 1 \Approximately, ui = uq 1 + ati V (12) A sound note having a single frequency is called a musical note. (13) When two or more musical notes sounded together or one after the other produce a pleasing sensation to the ear, they are said to be in concord and the p..

,Helvetica,sans-serif; font-weight: normal; text-align: justify;"> where $p_1$ and $p_2$ are the perimeters of the polygons. This is true whatever be the number of sides in the polygons. Let then the number of sides be indefinitely increased (i.e., let $n$ become inconveniently great) so that final..