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The bottom outer casing of a dry cell is the negative.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoIf you mean the material, that may vary, depending on the type of dry cell.
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Can you coat a composite plastic with concrete?
concrete is coated with composite plastic with s made upof mixture of cement is 73%
What is the other material which replace aluminium in engine piston?
Made upof Hypereutectic alloy... Hypereutectic alloy is a combination of aluminum and silicon
Which type of concrete should you use when it must reach its design strength in about 28 days?
concrete made upof ordinary portland cement gain strength in 28days
In dry air what is the concentration of nitrogen in ppm?
Nitrogen in air is measured in percent not ppm. Air is made upof 78% N2, 21% O2, 1% Ar and the next most common component is CO2 at 300 ppm.
What is 'Aviation Combustion'?
During combustion, the fuel&air mixture burns in a very controlled manner. Combustion causes a smooth build-upof temperature and pressure.Aviation combustion is combustion within an aeroplane. It is also a study topic about fuel efficiency against environmental pressures.
What are the characteristics of organisms?
The characteristics of organisms are:Reacts with its surroundingsMovesThey change,or develop,during life timesOrganisms are made upof one or more cellsThey use energy to do work or cause change. Example:Plants use sunlight to make food.All organisms have features that help them adapt to their surroundings. Example: Chameleons change color to help blend in with their environment and to hide from predators.They can produce more organisms of their own kind such as elephants or any other kind of animal or plants that grow more of their own kind too.
Can not the users on WikiAnswers look stuff up on their own since they have Internet access?
Looking Stuff UpOf course, WikiAnswers users can look stuff up on the Internet on their own. They make a choice to come here, where they get and give answers, make friends, and have fun. After all, using a search engine and searching sometimes endless web pages is rather boring and certainly no fun.
Why is it law that matter cannot be created or destroyed?
Matter and energy can neither be created nor destroyed. This is one of the most self defeating statement you have been teaching to your children. If matter can not be created, "it is not created". That means that matter does not exist. Vise versa, if it exists, it is "created". If it is "created" once it can be "created" again and again. If it is "created", it can be "destroyed" also. If it can be "destroyed" once, it can be "destroyed" again and again. The laws of nature are universal. That means they are never an one time event. So when the hydrogen get combined with oxygen, you get water. From the Uranium you get the lead after the decomposition. The phenomena is universal. It was repeated many times and going to get repeated many times. So you can not say that the matter was created once for all and now it can not be created again. As such the logic is complete here only. Here is an probable explanation. You can create the negative and positive electric charge by rubbing ebonite rod on wool. You can not destroy the negative charge with out the positive charge. Like wise you can not destroy the matter with out antimatter. But you do not find "enough" of antimatter in the universe. You can not find "enough" negative charge on the wool or "enough" of positive charge on the ebonite rod. So this is purely "the hypothesis" and very little but probably "enough" proof is there to support the same. (*) So you can not have the particle of matter, with out the corresponding particle of the antimatter in the space. So both are created at a time and annihilated at a time. This is subjected to the equation of Einstein, that is, E = mc 2. So some of the matter exist as energy and some of the antimatter exist as anti energy. ( You get energy from matter. So it fallows that you get "anti energy" from the anti matter.) So particles of matter and antimatter are created in the space at the same time. (**)(***) Think of the "Big bang". You had dense plasma in the initial thousands of years. Why all the particles of antimatter were not annihilated in that dense plasma? So the particles of matter and antimatter are created in the space around you, albeit in very little quantity, as on today also. It is the property of the space to produce particles and antiparticles, from nothing. That means, you get "equal" "energy" and "anti energy" from nothing. Both get precipitated to particles of matter and anti matter. Particles of matter get attracted to each other and particles of anti matter get attracted to each other due to gravitational force. It fallows that the particles of matter and antimatter will "repel" each other due to "anti gravity" effect. (****) So You have the universe of "matter and energy". It fallows that you have the universe made up of "antimatter and anti energy". They have been "Repelling" to each other due to "anti gravity" effect. So the universe made of antimatter has lost in the space. There may be many such universes made up of matter and anti matter. They may be forced to come closer to each other and annihilate each others. This may happen after events like Big bangs.So in the universe made up of matter, the matter can not be destroyed. As there is no "enough" antimatter to go for annihilation. In the universe made of antimatter, you can not destroy the same. as there is no "enough" of matter to annihilate the same. So you are told and made to believe that matter can neither be created nor destroyed. So the process of formation of matter and antimatter is not one sided. The process of annihilation also go hand in hand, probably.(*) When you collide the electron and positron with great speed, they have enough kinetic energy and kinetic anti energy to give you two gamma rays. ( Logically one of them will be anti gamma ray.) When you collide proton and anti proton with great speed, they have enough kinetic energy and anti energy to give you electrons and positrons. So the matter and anti matter probably completely annihilated.(**) It fallows that you get one electron with every proton. You get one positron with every electron and one anti proton with every proton. That means when you get one pair of electron and proton, you get one pair of positron and anti proton, at the "same" time. You get one neutron with every anti neutron.(***) It fallows that in the universe made of anti matter, you have the same elements made of antimatter. They have the same chemical properties and chemical reactions.(****) The gravitational force is directly proportional the product of the masses and inversely proportional to the square of distance between the masses. It fallows that the "anti gravitational force or the force of repulsion is directly proportional to the product of mass and anti mass ( or matter and antimatter) and inversely proportional to square of distance between them."
Facts about Neptunes surface?
Neptune is actually the farthest planet from the Sun because Neptune's orbit is oval shaped. It takes Neptune 165 years to orbit the Sun. So each season on Neptune lasts for 40 years. ACTUALLY it takes neptune 164 years to revolve and 0.67 earth days to rotate
How was Israel established?
The United Nations voted to create Israel. The land was taken from Palestine an Israel was formed. Israel is officially a Jewish country and it was created right after WWII as a safe place for Jewish people to live.I will try to give you a short overview:In the end of the 19th century first Jewish settlers came to Israel mainly from Europe to escape from Anti-semitism. Those settlers had huge problems, such as a low economic development standard, no available infrastructure, bad health care and dry land to grow food on.At the end of the 19h century a Austrian Jewish journalist called Theaodor Herzl initiated a movement which is called Zionism (named after the hill Zion in Jerusalem which is used as a Synonym for Jerusalem). The aim of Zionism was to create a Jewish homeland to get a safe place for all of the Jews in the world. It was not planned by everyone to create this state in Palestine (South America or African states were discussed as well), but the historical and religious connection of the Jews with Palestine was very big.After the British took control over Palestine in 1920 after World War I, Zionists worked together with the British closely and managed to establish a "State-in-a-state" during World War II. More and more Jews emigrated to Palestine (however, most Jews that left Europe went to the USA at that time), and their political influence grew gradually.Even before the state of Israel was declared there were several fights between Jews and Arabs in Palestine and as time went on Arabs became more desperate about not getting enough political influence. Eventually both Jews and Arabs attacked British troops and institutions. Therefore in the 1940s the British handed over the Problem to the United Nations, which set up a plan for partition. Palestine would be divided in two states: One Palestinian and one Jewish (Israel).After World War II ended, a civil war broke out in Palestine, which seamlessly merged in to the Israeli War of Independence. The War of Independence started after Israel declared independence in May 1948, when the state Israel was born. When the War of Independence ended in July 1949 Israel could live in peace for the first time, but it was a short time. Arabs and Palestinians are still fighting today.The British slowed immigration during World War II, a time when Jews needed to get out of Europe. After the end of World War II and after the scale of the Holocaust became understood by world leaders. Palestinians started to sell there land for high prices that Jews can afford. After hundreds of hundreds of acres sold to Jews, Britain gave its province (palestine) to Jews and then thousands of Jews came and Israel became
