Homework #3
교재의 Chapter 2.5-2.6와 수업자료 ppt (블랙보드에 업로드된 것)중 해당부분을 읽은 후 아래
과제를 풀고 그 결과물을 업로드 하기 바랍니다.
제출기한은 3월 26일 수업시간 전까지입니다. 과제 작성방법은 이전과 동일합니다. (수기 계산)
궁금한 사항은 블랙보드를 통해 질문하기 바랍니다.
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Homework Assignment on Vector Algebra, Exams of Circuit Theory
A homework assignment on vector algebra based on the textbook and classroom materials. Students are required to read the relevant chapters and complete the problems, then submit their results before the deadline. The submission method and deadline are provided in the document. Questions cover topics such as coordinate systems, vector components, unit vectors, and vector addition.
Typology: Exams
2019/2020
Uploaded on 04/26/2020
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Download Homework Assignment on Vector Algebra and more Exams Circuit Theory in PDF only on Docsity!
Homework # 교재의 Chapter 2.5-2.6와 수업자료 ppt (블랙보드에 업로드된 것)중 해당부분을 읽은 후 아래 과제를 풀고 그 결과물을 업로드 하기 바랍니다. 제출기한은 3 월 26 일 수업시간 전까지입니다. 과제 작성방법은 이전과 동일합니다. (수기 계산) 궁금한 사항은 블랙보드를 통해 질문하기 바랍니다.
- Vector algebra, as we are going to use it, is based on a ___________ coordinate system. A) Euclidean B) Left-handed C) Greek D) Right-handed E) Egyptian
- The symbols α, β, and γ designate the __________ of a 3-D Cartesian vector. A) Unit vectors B) Coordinate direction angles C) Greek societies D) X, Y and Z components
- If you know only u A , you can determine the ________ of A uniquely. A) magnitude B) angles (α, β and γ) C) components (𝐴𝐴𝑋𝑋, 𝐴𝐴 (^) 𝑌𝑌, & 𝐴𝐴 (^) 𝑍𝑍) D) All of the above.
- For a force vector, the following parameters are randomly generated. The magnitude is 0.9 N, α = 30º, β=70º, γ = 100º. What is wrong with this 3-D vector? A) Magnitude is too small. B) Angles are too large. C) All three angles are arbitrarily picked. D) All three angles are between 0 º^ to 180º.
- What is not true about an unit vector, e.g., u A****? A) It is dimensionless. B) Its magnitude is one. C) It always points in the direction of positive X- axis. D) It always points in the direction of vector A.
- If 𝐅𝐅 = {10𝐢𝐢 + 10𝐣𝐣 + 10𝐤𝐤} N and 𝐆𝐆 = {20𝐢𝐢 + 20𝐣𝐣 + 20𝐤𝐤 } N, then 𝐅𝐅 + 𝐆𝐆 ={ ____ } N A) 10 𝐢𝐢 + 10 𝐣𝐣 + 10 𝐤𝐤 B) 30 𝐢𝐢 + 20 𝐣𝐣 + 30 𝐤𝐤 C) – 10 𝐢𝐢 – 10 𝐣𝐣 – 10 𝐤𝐤 D) 30 𝐢𝐢 + 30 𝐣𝐣 + 30 𝐤𝐤