90cm相当于什么码,请问180cm*90cm相当于多长?
据和记百科网站「寂静城°」消息,近日,90cm相当于什么码,请问180cm*90cm相当于多长?引发热议,180cm*90cm相当于多长同样引起许多争议,对此众网友各抒己见。但到底是怎么回事呢?和记百科为您解答。
90cm相当于34码。厘米乘以0.03等于尺;尺乘以10加7等于码;因此90cm*0.03=2.7尺。2.7*10+7=34码。除此之外其他腰围均可用以上公式计算尺码。因裤型的不同,选择尺码时建议穿上身试一下。
裤子尺码对照表:
29码=2.2尺腰=73.5CM;
30码=2.3尺腰=77CM;
31码=2.4尺腰=80CM;
32码=2.5尺腰=83.5CM;
33码=2.6尺腰=87CM;
34码=2.7尺腰=90CM;
36码=2.8尺腰=93.5CM;
38码=2.9尺腰=97CM;
40码=3.0尺腰=100CM。
正确答案:【分析】(1)找出支点和动力,然后做出动力臂;(2)动力臂大于阻力臂,属于省力杠杆;(3)根据杠杆的平衡条件,求出动力,再求出一个肩膀受到的力;(4)根据公式单手做俯卧撑,手受到的压力求出压强;(5)先求出肩膀上升总高度,再根据功的公式,求出所做的功;(6)根据,求出功率;(7)根据公式,求出单手做俯卧撑,手受到的压强变化。(1)支点在o点,地面对人的支持力为动力,由支点向动力作用线作垂线,支点和垂足之间距离及为动力臂,图图如下:;动力臂大于阻力臂,是省力杠杆;(2)肩到脚的距离,重心到脚的距离,动力臂与阻力臂之比:,人的重力,即,根据杠杆的平衡条件,可得:,所以两臂各用力:;手受到的压强;(3)肩膀上升的总距离,做的功;做功的功率;(4)单手做俯卧撑,手受到的压力不变;根据公式,压力不变,受力面积减小,压强增大。故答案为:(1)见图;省力;(2)210N;;(3);43.75W;(4)不变;增大。
【英文介绍/For English】:
90cm is equivalent to 34 yards. Centimeter times 0.03 equals feet; feet times 10 plus 7 equals yards; so 90cm*0.03=2.7 feet. 2.7*10+7=34 yards. In addition to other waist circumferences, the above formula can be used to calculate the size. Due to the different types of pants, it is recommended to try on the upper body when choosing the size.
Pants size chart:
29 yards = 2.2 feet waist = 73.5CM;
30 yards = 2.3 feet waist = 77CM;
31 yards = 2.4 feet waist = 80CM;
32 yards = 2.5 feet waist = 83.5CM;
33 yards = 2.6 feet waist = 87CM;
34 yards = 2.7 feet waist = 90CM;
36 yards = 2.8 feet waist = 93.5CM;
38 yards = 2.9 feet waist = 97CM;
40 yards = 3.0 feet waist = 100CM.