当雷诺数为 2000 ~ 4000 时,流体的流动处在临界区,或是层流或是紊流,管道的阻力还不能作出确切的关联。When the Reynolds number is between 2000 and 4000, the fluid flow is in the critical region, either stagnant or turbulent. 点击查看答案 ...
How many numbers each lying between 100 and 1000 can be formed with the digits 2,3,4,0,8,9, no digit being repeated? View Solution The number of odd numbers lying between 40000and 70000 that can be made from the digits 0, 1,2,4,5, 7 if digits can be repeated any number of tim...
HEAT AND MASS TRANSFER The net heat transfer between the two tanks through the horizontal duct can be evaluated by equation (6) and depends on the temperature difference (T4-T14) or rather on the Rayleigh number. The Nusselt number, defined as: (9)Nu=QtkΔTLπd24 where L is the horizo...
To count from 1 to 8,680,000 would take you about twenty-one weeks! This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around ...
the eyes opens in a random between 100 and 40000 millisec. if they open up the user should click stop without seeing them. so its intuitiv. i just tryed. this code is on the mc with the eyes to let them open randomly. it...
1000 – Thousand, hundreds, tens, and unit column from left to right. Ten ThousandThousandHundredTensUnit 10000 Rule 2: For the numbers between 0 – 20, we must remember their names such as, zero, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen,...
Quickly calculate the sum of numbers in your browser. To get your sum, just enter your list of numbers in the input field, adjust the separator between the numbers in the options below, and this utility will add up all these numbers. Created by developers from team Browserling. ...
To count from 1 to 1,440,000 would take you about three weeks! This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half ...
aData from 4319 households using 12,249 observations over a five-year period indicate a positive relationship between changes in satisfaction and share of wallet. 数据从4319个家庭使用12,249观察在一个五年期间表明钱包之间变化在满意上和份额的一种积极关系。[translate] ...
WAD and RAY A wad is a decimal number with 18 digits of precision and a ray is a decimal number with 27 digits of precision. These functions are necessary to account for the difference between how integer arithmetic behaves normally, and how decimal arithmetic should actually work. ...