Physics, 08.04.2020 03:27 meganwintergirl
Your answer is CORRECT. Let vâ be the vector with initial point (8,1) and terminal point (6,4). Express vâ as a linear combination of the standard unit vectors. a) vâ =3iâ â2jâ b) vâ =2iâ â3jâ c) vâ =2iâ +3jâ d) vâ =â2iâ â3jâ e) vâ =â2iâ +3jâ f) None of the above. Question 2 Your answer is CORRECT. Let vâ be the vector with initial point (â5,1) and terminal point (5,3). Find the vertical component of this vector. a) â6 b) 8 c) 2 d) â2 e) 10 f) None of the above. Question 3 Your answer is CORRECT. Find the sum of the vectors uâ =6iâ â4jâ and vâ =â2iâ â5jâ . a) vâ =â7iâ +2jâ b) vâ =4iâ â9jâ c) vâ =4iâ +4jâ d) vâ =2iâ â7jâ e) vâ =â9iâ +4jâ f) None of the above. Question 4 Your answer is INCORRECT. Given vectors uâ =â¨â2,â3⊠and vâ =â¨5,2âŠ; find 5uâ â4vâ . a) vâ =â¨22,â7⊠b) vâ =â¨â30,â23⊠c) vâ =â¨33,22⊠d) vâ =â¨â25,â28⊠e) vâ =â¨â23,â30⊠f) None of the above. Question 5 Your answer is INCORRECT. Find the magnitude of the vector vâ =4iâ â4jâ . a) 8 b) 42ââ c) 32 d) â32 e) 0 f) None of the above. Question 6 Your answer is INCORRECT. Given the vector vâ =â¨1,3âŠ; find a unit vector in the same direction as vâ . a) â¨16,12⊠b) â¨310âââ10,10âââ10⊠c) â¨1,3⊠d) â¨10âââ10,310âââ10⊠e) â¨110,310⊠f) None of the above.
Answers: 2
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Pressure is a measure of force per unit area or p=f/ap=f/a. a student is checking the amount of pressure their car exerts upon the road. the car weighs 22 tons ( us short ton ). the student finds the dimensions of each tire's footprint on the road is 12.5 cm x 16.5 cm. in pounds per square inch (psi), what is the total pressure the car exerts upon the road?
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Your answer is CORRECT. Let vâ be the vector with initial point (8,1) and terminal point (6,4). Expr...
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