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Physics Undergraduate

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【1 】As shown in Figure 1, here ame an object Aof mass AZ B ofmass 7 and Cof mass r On a smooth and horizontal surfce. A and B mre inlerconnected by a spring. The Spring has the naumi lcngth of / and a spring constant た A。 B, and C are on one straight Hime and can move along the stmight line. Tuke the right direction as positive fbr velocity Neglect the mass of the spring and air resistanee 国1に示すように, 水平でなめらかな台の上に質量 /の2つの物体 A, Bと質 基wの物体Cが静止している、A と Bはばね定数たで自然散7 のばねで結ばれ てでいるAB,Cは一直線上にあり, この直線上のを動くものとする. 速度の 向きは図の右向きを正にとるものとする. ばねの質基と空気抵抗は無視できる. (①) A and B are oscillated symmetically so ss for center of mass of A and B imtereonnccted by a spdng to be fixed. Find 7, the Gimc pcriod of the oscillgtion. ばねで千ばれた A と B の重心動かないように, A とB の重心に関して左右対 -称に振動させた場合の周期了を求めよ. Next A and B are atrest. The length of the spring is the natural length / で moving speed yo collides perfect-elastically with A. It is assumed that A and C are rigid, the coHlision occurs very shortly and the displacement during the colision is neglected Moreover iis also assumed tbat after the collision。 A snd C do not have nother の 次に, A と B をばねの長さが自然長 7 になる位置で静止させて, C を左から y の速度で A に衝突させる. この衝突は完全弾性衝突であり, かつ物体が非常に かたくて衝突は極めて短時間に行われ, 衝突中の変位の大きさは無視できるも のとする. さらに, Aと Cは一度笑突した後再びぶつからないものとする- の Find tie velociies yand ycofAand Cimmediaedy Ner he colison。 respectiweiy 衝突直後の A と C の速度w vcを求めよ. ⑬) Find the velocity yoof the cemlerofmassofAand B using が6 and ye 衝後の A と B の重心の束度woを44を用いて表せ (④ Find mc minimum lengtb ofthe pcng sferthe colision ing ヶ。 4 we かた 衝突後, Aと B が最も近接したときのばねの長さを ヵ, 7 w。 4を用いて表せ。 も Hi

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English Senior High

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テキ Mueic has been used to help people with a variety of probleme. These problems can be both physical and emotional ones.『For example」music has been used to bi) ooplo」 with Jearning diHycultiew, speciml meeds, depression brain damage and pereonalifrl People also tee music 66 eieve stress。 They ma Hheir favorite 和夫 they arrive home after a stressful day. The use cFmusicto healor help peopleAe called( ア ). At some very deep 1evel」 [human beingslhave a connection th mueic。 民 can change our moedand sfctouremotions、オThig janotsurpriaing_ because の 人 ず 1 exigted in humah GSilzation。and now eximte TE pr ctBef im ceording tolsome studies, six-month-old babies re でmoreyto their mothers 7 compared to (蘭BJn_some waya the human hb 6 De eeen aga rg の2本22 netrninent ー wecanclap, fammp and eing。 The hea 半 can be compared to the beatof adrum and even our breathing bas a ce musical選 rhythmtoid ウ 0 leociatione with difierent songs 6pt tusic. For example, many couples have hich may remind them of some happy Gime in the past IMusic therapy uses this deep human response to music to treat people。 Therapists have to be such skiled musicians that they are able to improvise and match the mnsic to each patient. Naturally, patients participate as much as poseible in the making of the mueic. If they are able to play, patients can choose derent instruments from drums to maracas or the piano, and use these to develop their own musical expression。 Of couree』 using your own voice is fine too! Experiencing music together and developing a relationship between therapist and patient are important parts of the reatment. Although science has yet to prove precisely how music therapy works,オ there is no doubt 』 that it doee work. There are many case studies which support this, and the fact that mi therapy ha existed for over 2.000 yeare points to is usefulness。 Tn addition 赤 has be acknowledged and dsed by many organizations from hospitals to prisons。 The Federations of Music Therapy Wa founded in 1985 to help further its d promote its uee. Mugic Therapy is also being acknowledged in higher education。 State Univereity is planning to 1aunch ite own music therapy degree program to tran mueic therapists 一 the firat ofite kind in the world. Whether you are a stressed executive, sufer from depression, or ha condition,js certain that( カカ ). 2 no their own physical and mental health and therefore, they( キ T eeeiw mm rmd varine aermaive heaing miode mudh

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