江苏体彩7位数历史开奖结果查询:Is pressure a vector or scalar quantity?
江苏7位数预测 www.ldyv.net 问题补充：
Is pressure a vector or scalar quantity?
I know force is a vector quantity since it is defined as a pull or a push one object exerts on another.
if so, why pressure, which can be calculated using the relationship 'pressure = force over area' is a scalar quantity?
Pressure is a vector .矢量乘矢量为标量,矢量乘标量依然是矢量.
It is a pressure是什么意思？
3个答案 提问时间: 2011-07-20 4个赞
回答：be under a lot of pressure是下了很大的压力双语对照例句：1.you may be under a lot of pressure, at least in the way you appear to others. 你可能压力很大，至少你给别人的...2011-7-20
Is pressure a good thing or a bad thing？
2个答案 提问时间: 2009-04-01
问：could you give me some evidence to support your choice?
英语辩论,我们是反方pressure is a killer for students,正方pre...
2个答案 提问时间: 2016-05-31 2个赞
问题说明：英语辩论，我们是反方pressure is a killer for students，正方pressure is ...
回答:什么是适量压力 压力轻了没什么效果 重了就会造成不好的影响 反而会造成退步2016-5-31
2个答案 提问时间: 2015-06-15 3个赞
回答:Different people have different ideas about pressure. Some hold that pressure is something very vicious. If there is too much of it, it will lead to the decline of one's physical and...2015-6-16
以Pressure is a serious problem in today's world. How can we live and ...
2个答案 提问时间: 2011-03-15 7个赞
回答:s the technology and the economy are significantly increasing day by day in our ... 不过貌似已经超过100字=. More and more pressure and stress are added to our daily ...2011-3-16
pressure is a serious problem today. If your best friend fells under ...
2个答案 提问时间: 2013-09-28
回答:Dear friend,If you feel under pressure,I have some advises here.First,if you feel uncomfortable when do you work,you should have a short break.You can go outdoor to breath ...2013-9-28
4个答案 提问时间: 2010-04-01
回答： Pressure is force that you produce when you press hard on something. N-UNCOUNT She kicked at the door with her foot, and the pressure was enough to open it. The ...2010-4-1
英语作文《is stress a bad thing》
2个答案 提问时间: 2010-06-27 12个赞
回答:In my judgement,it's not a direct answer question.it depends on what kind of a ... it is not a bad thing to recieve some pressure outside,which will give you some unexpected ...2010-6-27
2个答案 提问时间: 2016-03-30
回答:pressure gradient [气象] 气压梯度The atmosphere pressure gradient is an inverse measure of thespacing of the isobars on a weather map. 气压梯度与天气图上等压线的间...2016-3-30
2个答案 提问时间: 2017-12-07
回答：capillary pressure英 [?kæp??leri： ?pre??] 美 [?kæp??l?ri ?pr???]毛管... 毛细血管血压双语例句1. When pulmonary capillary pressure is markedly elevated, ...2017-12-7