英語翻譯
英語翻譯
1.a scuba diver dives to a depth of 20m in ocean water.if the circular glass plate on the diver's face mask has a diameter of 16cm,what force does the water exert on it?
2.a bathyscaph descends to a depth of 11000m(nearly 7 miles!)in the Mariana Trench in the Pacific Ocean.
a.what is the pressure at that depth?
b.how much force is exerted by the water on a circular observation window of diameter 16cm?
c.how much greater is the force compared with the force on the diver's mask in the previous question?
3.a gravel barge.rectangular in shape,is 4m wide and 10m long.when loaded,it sinks 2m in the water.what is the weight of gravel in the barge?
1.a scuba diver dives to a depth of 20m in ocean water.if the circular glass plate on the diver's face mask has a diameter of 16cm,what force does the water exert on it?
2.a bathyscaph descends to a depth of 11000m(nearly 7 miles!)in the Mariana Trench in the Pacific Ocean.
a.what is the pressure at that depth?
b.how much force is exerted by the water on a circular observation window of diameter 16cm?
c.how much greater is the force compared with the force on the diver's mask in the previous question?
3.a gravel barge.rectangular in shape,is 4m wide and 10m long.when loaded,it sinks 2m in the water.what is the weight of gravel in the barge?
英語人氣：260 ℃時間：2020-02-04 05:34:57
優(yōu)質(zhì)解答
第一題是壓強(qiáng)的,一個潛水員潛到20米深的水中,潛水員臉的直徑是16厘米.問他的臉受多少力,F=ps=ρgh*s=1000*9.8*20*π*0.08^2=3939N第二題是也是壓強(qiáng)的,一個潛水器械潛入太平洋下11000米a,壓強(qiáng)是多少.p=ρgh=1000*9.8*...
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