Grade

Type of questions

English Senior High

20がわかりません 消去法的に③だとは思いますが、消去法を使わないで説明してください あか

の中から1つすつ世ばのでと The Btart renguee9 @r ounde signgr an stures Ahat Language can be 0 as a 凌? DBS1 thini These ng to all member9of a grOVP- rel t the same 1 』 to represent things whether )t of Symbolic language considered a animalsjs considered 1 人 to what can be detected 2 the senseS responding to the presence/of the stranger. It cannot express its attitude toward strangere without a stranger at hand. Dog appear capable/of expressing wiya、 名w basic ideas 一 hostihity, affection, hunger, the desire to staorる0, andる few others. ike many other animals, dogs seem able to communicate only about the 0 example。 a dog wants to go outside, 志 ! <4有な simple ttersandin( 20 may scratch a door hine. Tt is not known when humans frst discovered the symbolic power (ef 。 VariOuS theorieWfabout this discovery Most involve Janguage.)Phere are,/how imagining a simple てoincidence of events: a primitiye man dg for clam(en 8 utterances are used skil. 19 t is thought to consistoE response) 2 。 dog barks at a strangery2 記 beachl As he digs, he makes sounds,人At one oint, he bites into an especially tasty clam. Thenext aound he makes he associates with the pleasant experiencc oftaste) He ponte to the clam/and makes the sound agan, einforcingthe sound witha 21 ),they have a sound to smile @ pleasure) His companions understand. ( someone they use for suggesting that it is time to go clam have found a good clam.

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Physics Undergraduate

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【2 】 Abell A wi mas ma ls suspended al te cdge ofs wi wih length / C) woee dee is tved wt O as illustmied in Fignre 2 ー The tall emwins stil at the height As mnd then | doppet Another hall B with mass ye at NN 多 the botom on the arc of the motion of the ball alB y] A_ The tall Acollides against the ball B in the cad tansential pmojection at the bottom. Here the gravittional acceleration is denoted by g. の Nesicct thc mass of the wire and airresistance Answer the following questione。 団 2 に示すように, 質基maの球A が, 片端を点 O に固定した長きんのワイヤ ーで吊り下げられてでいる. 高さ aに静止している慰A を静かに離す 球んが之 動する円弧上の最下点に質量 mの球 B が静止しでいる- 球人は球 B に周方向 から衝突する重力加速度を g とし, ワイヤーの質量と空抵抗が無視できる として, 次の間いに答えよ. (1!) The ball A with the velocity ya periectinelastically collided with the ball B. Find he velocity of the merged balls immediately aer collision using ae We 球A は速度で味B と完人大作衝突した at へ をseaを用いて求めよ。 の 本06 GURedoeeai Be compared with that before the balls periecinelastically collided using am fe g。 問①において, 球Aが球 B と完全非弾性衛内する前と後における運動エネ ルギーの差を ax./。 # を用いて求めよ。 (3) Find the velocity of the ball A immediately after collision against the ball B when me collsion is occured with the cocfiicient ofrestittion 0.5 ueing ma / 球Aが球B と反発係数0.3 で衝突した時, い 2AVDXPS: -

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