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物理 大学生・専門学校生・社会人

問2の(3)(4)を教えてください

問2. ばね定数 k [N /m] (k > 0) の軽いばねがある。なめらかな水平面上でこ 自然長 のばねの左端を固定し、右端に質量 m kg] の物体を取り付けた。次に、 手で mm 物体を引っ張ってばねを自然長より cm 伸ばしてから静かに手を放した。図 0 に定義された座標軸に基づいて、その後の物体の運動について、以下の間に答 えよ。ただし,時刻 ts]での物体の位置を (t) [m] とし、ばねが自然長のときの物体の位置を原点とする。 (1) Find the restoring force F, [N] that the spring tries to return when the object is displaced by z m from its natural length. (2 points) d'z as its acceleration. dt? (2 points) (2) Find the equation of motion of the object, using the notation of (3) Find the general solution of the equation of motion of the object. (3 points) (4) Find the solution that meets the initial conditions described in the problem. Here, the moment when the hand is released is set as time t==0s. (3 points) 問3.問2では摩擦などの抵抗力がない理想的な単振動を扱ったが、実際には抵抗力が存在する。 抵抗力は速度 dt に比例することが多く、この比例定数をc[N.s/m] (c> 0) とおくと、 運動方程式は教科書 P.66 の(2.40)式として表 される。この方程式の一般解は、 教科書 P.52に示す「定数係数の2階線形同次微分方程式の一般解」として表され、 教科書 P.66 の下段3行に示すような解 a) c)となる。これらの解の導出課程を、 以下の手順に従って示せ。 d。 da. (1)(2.40)式 m = ーkc - c dt? の右辺において、c dt の項の符号がマイナスである理由を考察せよ。 dt (2点)

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物理 大学生・専門学校生・社会人

問2の(3)(4)を教えてください

問2. ばね定数 k [N /m] (k > 0) の軽いばねがある。なめらかな水平面上でこ 自然長 のばねの左端を固定し、右端に質量 m kg] の物体を取り付けた。次に、 手で mm 物体を引っ張ってばねを自然長より cm 伸ばしてから静かに手を放した。図 0 に定義された座標軸に基づいて、その後の物体の運動について、以下の間に答 えよ。ただし,時刻 ts]での物体の位置を (t) [m] とし、ばねが自然長のときの物体の位置を原点とする。 (1) Find the restoring force F, [N] that the spring tries to return when the object is displaced by z m from its natural length. (2 points) d'z as its acceleration. dt? (2 points) (2) Find the equation of motion of the object, using the notation of (3) Find the general solution of the equation of motion of the object. (3 points) (4) Find the solution that meets the initial conditions described in the problem. Here, the moment when the hand is released is set as time t==0s. (3 points) 問3.問2では摩擦などの抵抗力がない理想的な単振動を扱ったが、実際には抵抗力が存在する。 抵抗力は速度 dt に比例することが多く、この比例定数をc[N.s/m] (c> 0) とおくと、 運動方程式は教科書 P.66 の(2.40)式として表 される。この方程式の一般解は、 教科書 P.52に示す「定数係数の2階線形同次微分方程式の一般解」として表され、 教科書 P.66 の下段3行に示すような解 a) c)となる。これらの解の導出課程を、 以下の手順に従って示せ。 d。 da. (1)(2.40)式 m = ーkc - c dt? の右辺において、c dt の項の符号がマイナスである理由を考察せよ。 dt (2点)

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英語 高校生

お願いします

130. Nancy almost never asks for help - her work, but last week she was so overwhelmed that she did. (A) with (B) for (C) at (D) to 131. Instead of buying a car, you might want to try leasing one by ……… (A) the month. (B) a (C) its (D) this 133. Resumes with cover letters may be submitted by fax, e-mail or conventional mail, but initial inquiries may not be made in -… or by telephone. (A) oneself (B) person (C) self (D) them 107. The thief came out the front door of the liquor store and walked off that direction. (A) at (B) on (C) in (D) to 109. No one is allowed to enter the secret facility without presenting two …… of photographic identification. (A) pieces (B) acts (C) marks (D) parts 125. A lack of long-term planning contributed a sense that the company would run into trouble sooner or later. (A) to (B) with (C) for (D) at 127.…… remain several important issues to resolve, but the negotiations appear to be moving toward a successful conclusion. (A) It (B) She (C) They (D) There 130. Sometimes negotiations break down for unexpected reasons, even when the two sides have respect for one ……。 (A) other (B) the other (C) others (D) another 134. In the early 1990s, the Japanese economy struggled under a heavy bad debt burden, …with the additional problem of slow economic growth. (A) along (B) in (C) on (D) out 135.… thorough market research, it is difficult for a manufacturer to determine how well-known its brand name is, and how people will react to different style changes. (A) Unless (B) Without (C) Other than (D) Outside of 101. The train won't -- the next town for another hour or so. (B) come (A) arrive (C) get (D) reach

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英語 高校生

英語お願いします

……… her work, but last week she was so 130. Nancy almost never asks for help overwhelmed that she did. (A) with (B) for (C) at (D) to 131. Instead of buying a car, you might want to try leasing one by --month. (A) the (B) a (C) its (D) this 133. Resumes with cover letters may be submitted by fax, e-mail or conventional mail, but initial inquiries may not be made in or by telephone. (A) oneself (B) person (C) self (D) them 107. The thief came out the front door of the liquor store and walked off that direction. (A) at (B) on (C) in (D) to 109. No one is allowed to enter the secret facility without presenting two -…of photographic identification. (A) pieces (B) acts (C) marks (D) parts 125. A lack of long-term planning contributed a sense that the company would run into trouble sooner or later. (A) to (B) with (C) for (D) at 127.……… remain several important issues to resolve, but the negotiations appear to be moving toward a successful conclusion. (A) It (B) She (C) They (D) There 130. Sometimes negotiations break down for unexpected reasons, even when the two sides have respect for one …. (A) other (B) the other (C) others (D) another 134. In the early 1990s, the Japanese economy struggled under a heavy bad debt burden, … with the additional problem of slow economic growth. (A) along (B) in (C) on (D) out 135.……… thorough market research, it is difficult for a manufacturer to determine how well-known its brand name is, and how people will react to different style changes. (A) Unless (B) Without (C) Other than (D) Outside of 101. The train won't ……… the next town for another hour or so. (B) come (A) arrive (C) get (D) reach

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英語 高校生

お願いします

130. Nancy almost never asks for help … overwhelmed that she did. (A) with her work, but last week she was so (B) for (C) at (D) to 131. Instead of buying a car, you might want to try leasing one by month. (A) the (B) a (C) its (D) this 133. Resumes with cover letters may be submitted by fax, e-mail or conventional mail, but initial inquiries may not be made in -- or by telephone. (A) oneself (B) person (C) self (D) them 107. The thief came out the front door of the liquor store and walked off direction. (A) at that (B) on (C) in (D) to 109. No one is allowed to enter the secret facility without presenting two -…of photographic identification. (A) pieces (B) acts (C) marks (D) parts 125. A lack of long-term planning contributed a sense that the company would run into trouble sooner or later. (A) to (B) with (C) for (D) at 127.…… remain several important issues to resolve, but the negotiations appear to be moving toward a successful conclusion. (A) It (B) She (C) They (D) There 130. Sometimes negotiations break down for unexpected reasons, even when the two sides have respect for one ……。 (A) other (B) the other (C) others (D) another 134. In the early 1990s, the Japanese economy struggled under a heavy bad debt burden, … with the additional problem of slow economic growth. (A) along (B) in (C) on (D) out 135.… thorough market research, it is difficult for a manufacturer to determine how well-known its brand name is, and how people will react to different style changes. (A) Unless (B) Without (C) Other than (D) Outside of 101. The train won't …… the next town for another hour or so. (B) come (A) arrive (C) get (D) reach

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英語 高校生

お願いします

130. Nancy almost never asks for help her work, but last week she was so overwhelmed that she did. (A) with (B) for (C) at (D) to 131. Instead of buying a car, you might want to try leasing one by month. (A) the (B) a (C) its (D) this 133. Resumes with cover letters may be submitted by fax, e-mail or conventional mail, but initial inquiries may not be made in ……………or by telephone. (A) oneself (B) person (C) self (D) them 107. The thief came out the front door of the liquor store and walked off that direction. (A) at (B) on (C) in (D) to 109. No one is allowed to enter the secret facility without presenting two - …of photographic identification. (A) pieces (B) acts (C) marks (D) parts 125. A lack of long-term planning contributed …a sense that the company would run into trouble sooner or later. (A) to (B) with (C) for (D) at 127.………… remain several important issues to resolve, but the negotiations appear to be moving toward a successful conclusion. (A) It (B) She (C) They (D) There 130. Sometimes negotiations break down for unexpected reasons, even when the two sides have respect for one -…。 (A) other (B) the other (C) others (D) another 134. In the early 1990s, the Japanese economy struggled under a heavy bad debt burden, … with the additional problem of slow economic growth. (A) along (B) in (C) on (D) out 135.………… thorough market research, it is difficult for a manufacturer to determine how well-known its brand name is, and how people will react to different style changes. (A) Unless (B) Without (C) Other than (D) Outside of 101. The train won't the next town for another hour or so. (A) arrive (B) come (C) get (D) reach

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英語 高校生

お願いします

130. Nancy almost never asks for help her work, but last week she was so overwhelmed that she did. (A) with (B) for (C) at (D) to 131. Instead of buying a car, you might want to try leasing one by --month. (A) the (B) a (C) its (D) this 133. Resumes with cover letters may be submitted by fax, e-mail or conventional mail, but initial inquiries may not be made in or by telephone. (A) oneself (B) person (C) self (D) them 107. The thief came out the front door of the liquor store and walked off that direction. (A) at (B) on (C) in (D) to 109. No one is allowed to enter the secret facility without presenting two - …of photographic identification. (A) pieces (B) acts (C) marks (D) parts 125. A lack of long-term planning contributed a sense that the company would run into trouble sooner or later. (A) to (B) with (C) for (D) at 127.…… remain several important issues to resolve, but the negotiations appear to be moving toward a successful conclusion. (A) It (B) She (C) They (D) There 130. Sometimes negotiations break down for unexpected reasons, even when the two sides have respect for one…………。 (A) other (B) the other (C) others (D) another 134. In the early 1990s, the Japanese economy struggled under a heavy bad debt burden, …with the additional problem of slow economic growth. (A) along (B) in (C) on (D) out 135.… thorough market research, it is difficult for a manufacturer to determine how well-known its brand name is, and how people will react to different style changes. (A) Unless (B) Without (C) Other than (D) Outside of 101. The train won't the next town for another hour or so. (A) arrive (B) come (C) get (D) reach

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英語 高校生

お願いします

130. Nancy almost never asks for help - her work, but last week she was so overwhelmed that she did. (A) with (B) for (C) at (D) to 131. Instead of buying a car, you might want to try leasing one by month. (A) the (B) a (C) its (D) this 133. Resumes with cover letters may be submitted by fax, e-mail or conventional mail, but initial inquiries may not be made in ………or by telephone. (A) oneself (B) person (C) self (D) them 107. The thief came out the front door of the liquor store and walked off direction. (A) at that (B) on (C) in (D) to 109. No one is allowed to enter the secret facility without presenting two - …of photographic identification. (A) pieces (B) acts (C) marks (D) parts 125. A lack of long-term planning contributed …a sense that the company would run into trouble sooner or later. (A) to (B) with (C) for (D) at 127.…… remain several important issues to resolve, but the negotiations appear to be moving toward a successful conclusion. (A) It (B) She (C) They (D) There 130. Sometimes negotiations break down for unexpected reasons, even when the two sides have respect for one………。 (A) other (B) the other (C) others (D) another 134. In the early 1990s, the Japanese economy struggled under a heavy bad debt burden, …with the additional problem of slow economic growth. (A) along (B) in (C) on (D) out 135.… thorough market research, it is difficult for a manufacturer to determine how well-known its brand name is, and how people will react to different style changes. (A) Unless (B) Without (C) Other than (D) Outside of 101. The train won't the next town for another hour or so. (A) arrive (B) come (C) get (D) reach

回答募集中 回答数: 0