The fundamental frequency of a string stretched with a weight of 4kg is 256 Hz. The weight required to produce its octave is
The fundamental frequency of a string stretched with a weight of 4 kg is 256 Hz . The weight required to produce its octave is
The frequency is evaluated as frequency of the link pulsatory in the magnetic field. Independent claims are also included for the following: (1) a device for determining the frequency of a string of a stringed instrument; and (2) a method for automatic tuning of a string of a stringed ...
1【题目】T he frequency of oscillation of a string depends on its length L , the force applied to its ends T , and thelinear mass density p. Using dimensional analysis, find this dependence. 2The frequency of oscillation of a string depends on its length L,the force applied to its ends...
frequency, if any, of a string with two different thicknesses Very brief question. Assume a string that is made half out of a thin rope and half out of a thick rope (the thick rope is heavier of course). A transverse mechanical pulse is applied at one end (assume it is very sharp,...
>>> now what I want to do at django admin side that the string added in* >>> "String" *model should be saved in Song_Wors_count model and string >>> should be splitted in a single word and frequency should be counted this
The frequency of a guitar string varies inversely with its length. A 26” long string has a frequency of 440 vibrations per second.How many vibrations per second will there be if the string's length is reduced to 20” by putting a finger on a fret? ___ 相关知识点: ...
A substring of a string is a continuous segment of characters of the string. It is guaranteed that for any two queries the stringsmimi from these queries are different. Input The first line contains stringss(1≤|s|≤105)(1≤|s|≤105). ...
题目大意: 给一个串s和很多模式串,对每个模式串求s的一个最短的子串使得这个子串中包含至少k个该模式串。 题目分析: 均摊分析,有sqrt(n)种长度不同的模式串,所以有关的串只有msqrt(n)种。暴力用AC自动机找出来即可。 代码:
Codeforces-963 D Frequency of String 题意:给你一个字符串,进行q次询问操作,每次给你一个n和一个子串,问能否在字符串中出现n次子串,若可以输出最短长度的n次子串,否则输出-1 题解:优雅的暴力哈希,枚举每一个不同种长度的子串,注意是不同种!因为这样子能减少枚举的次数,这是一个巨大的优化,同时用...