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提问人:网友rha_xephon 发布时间:2022-01-07
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Find the electric field caused by a thin, flat, infinite sheet with a uniform positive surface charge density Find the electric field caused by a thin, flat, in

Find the electric field caused by a thin, flat, infinite sheet with a uniform positive surface charge densityFind the electric field caused by a thin, flat, in

A、Find the electric field caused by a thin, flat, in

B、Find the electric field caused by a thin, flat, in

C、Find the electric field caused by a thin, flat, in

D、none of the above

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更多“Find the electric field caused by a thin, flat, infinite sheet with a uniform positive surface charg…”相关的问题
第1题
Walt Whitman is a daring experimentalist and breaks free from the traditional iambic pentameter and writes ______.

A、a novel

B、free verse

C、essay

D、drama

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第2题
Neglecting the axial deformation of the given structure, the minimum number of basic unknowns for displacement method is:

A、2

B、3

C、4

D、5

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第3题
A writer can write a story in his or her own way without a definite focus.
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第4题
根据下面内容,回答题:

Having seen the damage caused by property bubbles, Hong Kong officials are determined not to have a repeat on their own patch.Last month the territory’s de facto central bank pushed banks into increasing the amount of cash they demand of homebuyers.John Tsang,Hong Kong’s usually tepid financial secretary,called in big developers to wain of government intervention if the housing market became“unfair’’0r“unhealthy”.0n November 2nd the territory’s chief executive,Donald Tsan9,vowed to cool prices.

The mounting disquiet reflects a huge jump in the price of property,particularly luxury fiats.Statistics compiled by CB Richard Ellis,an estate agent,show that prices of high—end flats have risen by 40%since January,and ate now just l3%below their 2008 pre—crisis peak.Some are once again priced at record levels.One flat,at 39 Conduit Road,was reported by the developer to have sold in October for HK $71,000($9,200)per square foot.The spike in flat sales has propelled shares in property companies higher,t00.That,in turn,has prompted a flood of primary and secondary offerings in property—related shares.

The government’s warnings may be having an impact.Sale and purchase agreements in the territory fell by 24%month on month in October(though they were still up by 97%year on year).But many flats have been pulled off the market in anticJIpotion of even higher prices,says Diana Lilauwala of At Home,a broker whose business finding homes for expats has been hit by a sudden paucity of supply.Unlike in 2008 current T,rices have little to do With expats and everything to do with local and.especially,mainland buyers.The government’s restrictions on leverage in property transactions may not help deter these customers.Some of them require mortgages—the percentage of mainland borrowers in Hong Kong has steadily risen over the past three years——but interest rates are low and many are apparently willing to pay cash.According to data from the Hong Kong Monetary Authority,the amount of money approved for mortgages has been declining in recent months even as prices have been going up.

Surging prices have sparked criticism in the local press about the affordability of housing in Hong Kong.They have also put a spotlight on developers’selling practices.The flat at 39 Conduit Road officially occupies the 68th floor,a lucky number for Chinese people,but that is only because 42 0ther floors were left out of the buildin9’s numbering system.(The one just above it is on the“88th”floor,an even more auspicious number).Papers are filled with stories about tricks used to inflate the reported size of flats,in many cases to a multiple of the actual living space.

Most important,the property boom has increased scrutiny of the way the government controls land sales in Hong Kong.The annual production of new flats has been declining for years.In its yearly report on the territory,released on November 3rd,the IMF welcomed hints that the government might release more land for development. But the acquisition of developable plots is largely left to a few companies with lots of pricing power.More competition is needed.as well as more land.

The main reason why the centml bank forced the other banks to increase the amount of cash required from homebuyers last month is that 查看材料

A.John Tsang warned the big developers.

B.Hong Kong officials expected to avoid negative effects of property bubbles.

C.Donald Tsang claimed that cool prices would be adopted.

D.the housing market is going to be not fair.

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第5题
The net magnetic force on a current loop in a uniform field is zero.
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第6题
[图] indicates no current is passing through the c...

indicates no current is passing through the closed loop L.

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第7题
The work done by a force can be either positive or be negative.
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第8题
The magnetic flux through a closed surface is always zero.
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第9题
Magnetic field lines never have end points.
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