Search: Vectors

Number of results: 1,555

math
given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q are the unit vectors,find the product of vectors p and q?
Tuesday, January 1, 2013 at 6:21am by bhawani

math
given that vectors(p+2q) and (5p-4q) are orthogonal,if vectors p and q are the unit vectors,find the dot product of vectors p and q?
Wednesday, January 2, 2013 at 1:04am by bhawani

physics
Can you help me with this one also? I know how to do it with 3 vectors but I can't seem to draw it with 4 vectors. The magnitudes of the four displacement vectors shown in the drawing are A=16.0 m, B=11.0 m, C=12.0 m, and D=26.0 m. Determine the (1) magnitude and (2) ...
Sunday, January 23, 2011 at 9:02pm by Brittany

Math - Algebraic Vectors
Given the vectors: u = [3, 0] v = [-1, 2] a) Express the vector w = [2, 8] as a linear combination of vectors u and v. How do I do this?
Wednesday, February 13, 2008 at 2:38pm by Anonymous

Calculus and Vectors
THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a dot b
Saturday, May 11, 2013 at 3:53pm by Johnny

math
if vectors a+b+c=0 and modulus of the vectors a, b and c are 3 ,5 and 7 respectively. find the angle between the vectors a and b.
Saturday, January 5, 2013 at 4:04am by raja

math
two vectors are defined as a=2i+xj and b=i-4j. find value of x if a) the vectors are parallel b) the vectors are perpendicular
Sunday, November 21, 2010 at 8:50pm by karla

math
two vectors are defined as a=2i+xj and b=i-4j. find value of x if a) the vectors are parallel b) the vectors are perpendicular
Sunday, November 21, 2010 at 8:12pm by karla

Calculus
Name two sets of vectors that could be used to span a set in R^3. Show how the vectors (-1,2,0) and (3,4,0) could each be written as a linear combination of the vectors you have chosen.
Wednesday, April 28, 2010 at 4:56pm by Jackiee

physics
You add the vectors. I recommend break each of the distances into N and E vectors, so adding the four vectors can be done in components. I will be happy to critique your thinking or work.
Monday, January 14, 2008 at 3:11am by bobpursley

Physics
Break each of the vectors into N, E components. For instance: vectorC is -C*Cos35 E and C*sin35N do that for all three vectors, then the sum of all three E vectors will be zero, and the sum of all three N vectors will be zero. Solve B, C (B,C is a magnitude of vectors b, C
Monday, January 19, 2009 at 8:59pm by bobpursley

Vectors
THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a * b
Saturday, May 11, 2013 at 3:54pm by Johnny

Calulas and VECTORS
THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a * b
Wednesday, May 19, 2010 at 7:34pm by z...........................

Calculus and vectors
Please, help I don't understand vectors T.T 1. In the prism, assume all dimensions have different lengths, state the following: a) state 3 equal vectors to DC⃗ b) state 4 opposite vectors to BC⃗ ------------------------------------- Here is the prism ...
Sunday, March 18, 2012 at 12:09am by Melissa

vectors
Determine whether each statement is true or false. Provide a brief justification. a. Two lines with parallel direction vectors willnot intersect. b. Two linesthat are perpendicularin R3 willhave perpendicular direction vectors. c. Two linesthat havenon-paralleldirection ...
Wednesday, June 9, 2010 at 5:25pm by Alicia

Calculus and vectors
A parallelogram is formed by R^3 by the vectors PA=(3,2,-3) and PB=(4,1,5). The point P=(0,2,3). a) what are the location of the vertices? b) what are the vectors representing the diagonals? c) what are the length of the diagonals?
Friday, March 23, 2012 at 4:03pm by Melinda

Physics Vectors
two vectors A and B have magnitude such that A>B. We do not know the directions of the vectors. however we can say that the magnitude of the sum A+B must be between? a) B and 2A b)A and A+B c) A-B and A+B d) A-B and A e) B and A+B
Thursday, September 27, 2012 at 8:59pm by cody

12th grade
prove that normal to plane containing 3 points whose position vectors are a vector,b vector,c vectorlies in direction addition of cross product of vectors b and c and cross product of vectors c and a and cross product of vectors a and b
Tuesday, September 22, 2009 at 9:54am by parth

physical science
The resultant vector of two particular displacement vectors dose not equal the sum of the magnitudes of the individual vectors. Describe the directions of the two vectors.
Monday, May 2, 2011 at 5:15pm by Becky

PreCalculus
Given vectors u=7i + 3j and v = -4i + 3j, find 5u-4v in terms of unit vectors. I am just beginning the study of vectors and have this problem. Could someone help? Thanks.
Thursday, January 29, 2009 at 9:48pm by Joanie

college physics
vectors have direction. YOu have specified no directional vectors in your vectors.
Tuesday, September 28, 2010 at 1:15pm by bobpursley

physics-vectors
If the magnitude of the sum of two vectors is greater than the magnitude of either vector, then: If the magnitude of the sum of two vectors is less than the magnitude of either vector, then: a. the scaler product of the vectors must be negative b. the scaler product of the ...
Monday, August 6, 2007 at 12:33am by mekeke

Physics
The last thing you need to see is an equation. You are adding three vectors. Compute the vectors, and add them with vector math, the result will be along the direction of the diagonal. I suspect you are having breaking vectors into components, and need to understand that.
Friday, August 13, 2010 at 8:12pm by bobpursley

vectors
ok theres a graph. its like this. basically theres a ray coming from the origin going up and left diagonally at about a 30 degree angle. the question says "for the following vectors draw the component vectors along the x and y axis". what do i do?!
Wednesday, August 5, 2009 at 2:24pm by jawn

vectors
If two vectors u and v fit the equation (u − v) • (u − v) = u•u+v•v, how must these vectors u and v be related? What familiar theorem does this equation represent?
Monday, April 12, 2010 at 7:07pm by sally

linear algebra
which of the following sets of vectors span R^3? a.){(1, -1, 2), (0, 1, 1)} b.) {1, 2, -1), (6, ,3, 0), (4, -1, 2), (2, -5, 4)} c.) {(2, 2, 3), (-1, -2, 1), (0, 1, 0)} d.) {(1, 0, 0), (0, 1, 0), (0, 0, 1), (1, 1, 1)} can someone show the steps to check for one of them and i ...
Thursday, July 19, 2007 at 2:02pm by chris

Physics
A) The work done is the scalar product of the F and d vectors. B) The cosine of the angle between the two vectors is the ratio of the scalar product (obtained in part (A)) to the product of the magnitudes os the F and d vectors. C) I do not understand why the displacement is ...
Wednesday, April 22, 2009 at 10:40pm by drwls

Calculus and vectors
take the triple product (2,0,1)•(-2,0,0)×(2,3,0) | 2 0 1 | |-2 0 0 | = -6 | 2 3 0 | so the vectors are not coplanar. The product represents the volume of the parallelopiped with the three vectors as edges. If they are coplanar, the volume is zero.
Monday, March 26, 2012 at 3:21pm by Steve

Vectors
You don't really even need vectors for this. It takes 2/10 hours to cross the river. In that time, the boat drifts downstream 2/10*4 = 4/5 km. Now, if you want to find the heading needed to get straight across the river, then you need some vectors.
Monday, March 12, 2012 at 10:45pm by Steve

Calculus and vectors
|C|=5 and |D|=8. The angle formed by vectors C and D is 35 degrees, and the angle formed by vectors A and C is 40 degrees. Determine |B|. Could someone explain this question
Friday, March 23, 2012 at 12:12am by Jake

total misunderstanding of vectorsphysics
You have made this problem impossible by the most fundamental error. You gave us scalars, not vectors! Vectors have both magnitude (scalar length) and DIRECTION !!! Without direction, the three "things" are simply not vectors and they certainly do not have components.
Friday, February 8, 2013 at 6:40pm by Damon

college Algebra/Linear Algebra
Find a Basis for each of these substances of R^4 (a) All vectors whose components are equal (b) All vectors whose component add to zero (c) All vectors that are perpendicular to (1,1,0,0) and (1,0,11) (d) The column space (In R^2) and nullspace(In R^5) of U=[1 0 1 0 1] [0 1 0 ...
Wednesday, November 3, 2010 at 10:06am by traxx

math
Two vectors have magnitudes of 3 units and 8 units respectively. The resultant of these two vectors has a magnitude of 8 units. What is the angle between these two vectors?
Friday, March 1, 2013 at 6:58pm by dave

Maths-Vectors Help!
Please can you help me as I have just been introduced to your Help Forum: Determine whether the vectors u, v and w given below are linearly independent or dependent where u, v and w are non-colliner vectors such that u=2a-3b+c , v=3a-5b+2c and w=4a-5b+c. thanks. Use exactly ...
Monday, April 16, 2007 at 8:10am by Charles

Calculus and Vectors
(a-5b).(a-b) = 0 ----> a^2 + 5 b^2 - 6 a.b = 0 a^2 = b^2 = 1 (as a and b are unit vectors), therefore: a.b = 1
Saturday, May 11, 2013 at 3:53pm by Count Iblis

Calculus and vectors
Do the vectors (2,0,1),(-2,0,0) and (2,3,0) lie on the same plane? Explain your reasoning.
Monday, March 26, 2012 at 3:21pm by Melinda

Physics
If a&b are vectors such that a+3b=-3i+j & a-b=i-2j then find vectors a&b.
Wednesday, November 16, 2011 at 12:52pm by Emily

Vectors/Calc
Calculate the area of the parallelogram with sides consisting of the vectors: a = (1,2,-2) b = (-1,3,0)
Tuesday, May 17, 2011 at 6:52pm by Anonymous

Calculus/Vectors
Calculate the area of the parallelogram with sides consisting of the vectors: a = (1,2,-2) b = (-1,3,0)
Tuesday, May 17, 2011 at 5:46pm by Anonymous

Math
Prove that vectors u, v and w are coplanar if and only if vectors u, v and w are linearly dependent.
Friday, April 18, 2008 at 1:34am by Tess

physics
what are vectors? and how do you us them. for example, i don't understand vector addition.
Sunday, January 23, 2011 at 10:06pm by vectors?

Vectors
Determine two unit vectors that are perpendicular to both a=[-5,6,2] and d=[3,3,-8].
Thursday, June 17, 2010 at 11:26pm by Anonymous

engineering science N4
You add them as vectors. Vbreltoa=velocityb-veloictya AS VECTORS
Monday, March 4, 2013 at 1:57pm by bobpursley

Vectors
Vectors "v" and "w" are given by v = 5i - 2j and w = i + 3j. Find scalars r and s such that r ( v - w) = ( r + s )i - 20j.
Thursday, April 26, 2012 at 9:32am by Cameron

vectors
how do you determine if two vectors are a) Collinear b) orthogonal?
Thursday, June 17, 2010 at 11:05pm by Ariza

Calculus
Two force vectors act on an object and the dot product of the two vectors is 20. If both of the force vectors are doubled in magnitude, what is their new dot product?
Thursday, March 29, 2012 at 7:06pm by Jake

Science
Net force is the totla force acting on an object. Remember that forces are vectors, so you have to choose a positive direction, where the vectors will be positive and a negative direction where the vectors will be negative.
Wednesday, March 28, 2012 at 8:00pm by A.P.

physics
Find the vectors.sum of ihe three vectors A=-3i-2j+7k, B=i+3j+k, C=-k
Monday, February 4, 2013 at 8:24pm by baron

Vectors
If vector a and b are unit vectors, and |a+b|= root3, determine (2a-5b) dot product(b+3a)
Wednesday, May 19, 2010 at 5:11pm by Shawn

Vectors, please check drawing
You have correctly chained the two vectors together. The resultant is the vector that joins the head and tail of the chain, but it is important to note that: "the arrow-head of the resultant and the chain coincide, and the tails coincide as well" It is not possible ...
Thursday, September 22, 2011 at 9:06pm by MathMate

Math
Given two non-collinear vectors a and b, show that a, axb, and (axb)xa are mutually perpendicular. Also Express the unit vectors i, j, and k as ordered triplets and show that i x j = k what are ordered triplets? Using components show that u x v = -v x u for any vectors u and v.
Sunday, March 30, 2008 at 10:57am by Anonymous

Calculus
(a) Since the definition of a dot product of A and B vectors , where A and B are vectors, is |A| |B| cos theta, then if B = A, then the angle between the two vectors is zero and {A}^2 = A*A (b) What are a and b? You don't define them. If the magnitude of F is constant, the...
Saturday, September 6, 2008 at 7:00pm by drwls

Mamthematics - Vectors
a) If vector u and vector v are non-collinear vectors show that vector u, vector u cross product vector v and (vector u cross product vector v) cross product vector u are mutually othogonal. b) Verify this property using vectors collinear with the unit vector, i, j and k c) ...
Friday, August 20, 2010 at 12:38am by Suhani

Physics
The sum & difference of two non-zero vectors Ä & B are equal in magnitude.what can you conclude about these vectors?why?
Sunday, November 25, 2012 at 6:12pm by Minte

Vectors
Vectors a and b have magnitudes 2 and 3, respectively. If one of them is 50degrees, find the vector 5a-2b and state its magnitude.
Sunday, June 15, 2008 at 2:54pm by Sam

Calculus and vectors
Please help/verify the answer. 1. When you add vectors geometrically: a) vectors are aligned tail to tail b) vectors are aligned head to head c) vectors are aligned head to tail d) vectors are put side by side Is the answer D? -------------------------------------- 2. Adding a...
Monday, March 26, 2012 at 10:53pm by Melinda

PLEASE HELP! college algebra
the magnitude of dot and products of two vectors are 6 ander root 3 and 6 respectivly9.find the angle between the vectors.
Friday, April 19, 2013 at 8:42pm by a khaliq

vectors
Add those two vectors by adding x and y components separately. The equilibrant will have the same magnitude (as the resultant) but be in the opposite direction.
Sunday, December 5, 2010 at 4:15pm by drwls

math
using 2 different pairs of points, find 2 direction vectors in the plane, then take the cross-product of those two vectors.
Monday, January 25, 2010 at 5:49pm by Reiny

Mechanics AS (Vectors)
When Studying Vectors, How Would I Go About Answering This Question? In Each of the following Cases, find the magnitude and direction of the resultant vectors of the two given vectors: a) a displacement of magnitude 26km on a bearing of 175 degrees and a displacement of ...
Tuesday, February 21, 2012 at 1:00pm by Jat

Physics
For your next question on vectors, you will have to brief us as to what you have learned. To combine two vectors, you could use graphical methods or summing components of vectors. In this particular case, since the two vectors happen to be directed opposite to each other, we ...
Monday, September 7, 2009 at 8:27pm by MathMate

Physica
The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above
Sunday, July 15, 2012 at 3:25am by Q8

Vectors/Calc
Note: u,v,w,a,b are all vectors Given that u= xa + 2yb v= -2ya + 3yb w= 4a - 2b where a and b are collinear, find the values of x and y for which 2u - v =w
Monday, May 23, 2011 at 11:10am by Anonymous

calulas and VECTORS
Calculate to the nearest degree, the angle between the given vectors. [x]=8 [y]=3, x * y = 12square root 3 the answer is 30 degrees ont he back of my textbook
Wednesday, May 19, 2010 at 7:37pm by z...........................

physics
Torque is the F x r vector cross product. Do your x, y and z represent unit vectors? It is conventiuonal to use i, j and k for unut vectors along x, y and z orthogonal axes. I am confused by your notation.
Friday, March 25, 2011 at 7:21pm by drwls

Vectors
Given vectors A = -4.8i + 6.8j and B = 9.6i + 6.7j, determine the vector C that lies in the xy plane perpendicular to B and whose dot product with A is 20.0.
Tuesday, September 28, 2010 at 11:48pm by Victor

physics
It is called a dot product, but you typed it like a cross product, which is something else entirely. The dot product of two vectors is the product of their magnitudes TIMES the cosine of the angle between the vectors. These vectors are not parallel in this case, so the cosine ...
Saturday, March 6, 2010 at 8:29pm by drwls

Discrete Math - Geometric Vectors
Under what conditions will 3 vectors having magnitudes of 7, 24 and 25, respectively, have the zero vector as a resultant? I don't get this question at all.
Saturday, February 9, 2008 at 5:38pm by Anonymous

vectors
The first and last legs of the journey are equivalent to a displacement of 5 km north. Add, as vectors, the net displacement vectors of 5 km north and 20 km east. Use the Pythagorean theorem. sqrt(5^2 + 20^2) = sqrt(425) = ___ km
Tuesday, April 5, 2011 at 5:16am by drwls

Maths-can someone explain something to me???
this is a forum for help with homework questions. Asking for a dissertation on vector algebra is a bit much. Also, it will probably not be any more comprehensible here than in your textbook. Looks lie it's time for a little face-to-face help. http://www.physics.uoguelph.ca...
Monday, February 18, 2013 at 12:48pm by Steve

Physics
2. We have two vectors that line in the x-y plane. If we take the cross-product of those two vectors we know that a. the magnitude of the cross-product will always be equal to the product of the magnitudes of the two vectors. b. the magnitude of the cross-product will always ...
Tuesday, December 27, 2011 at 8:03am by Sarah

calculus
Find two unit vectors that make an angle of 60° with v = 3, 4 (Enter your answer as a comma-separated list of vectors. Round your answers to four decimal places.)
Wednesday, August 31, 2011 at 12:46pm by colt

Calculus
Find the inner product of vectors a and b if a = (3, 0, –1) and b = (4, –2, 5,) and state whether the vectors are perpendicular. Find the inner product of vectors a and b if a=(4,-2,-2) and b= (-7,-2,4) , and state whether the vectors are perpendicular.
Monday, September 10, 2012 at 10:23pm by horre

Physics
Two vectors are at right angle to each other as shown. Find the resultant vector (the sum of the two vectors).
Sunday, March 4, 2012 at 4:32pm by Mina

Linear algebra
Find two vectors v and w such that the three vectors u = (1,-1,-1), v and w are linearly independent independent.
Thursday, August 11, 2011 at 7:59am by Neeraj

Linear Algebra
Prove that If a vector space is of dimension n and a set of vectors spans V, then that set of vectors must be linearly independent.
Tuesday, February 26, 2013 at 9:01am by John

physis
The magnitudes of the four displacement vectors shown in the drawing are A = 13.0 m, B = 11.0 m, C = 12.0 m, and D = 27.0 m. Determine the magnitude and directional angle for the resultant that occurs when these vectors are added together.
Friday, January 20, 2012 at 5:04pm by Natasha

physics
The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m, B = 11.0 m, C = 12.0 m, and D = 21.0 m. Determine the magnitude and directional angle for the resultant that occurs when these vectors are added together.
Friday, January 20, 2012 at 3:18pm by Anonymous

Physics
How does the resultant of two vectors change as the angle between the two vectors increase?
Sunday, October 2, 2011 at 8:37pm by Lala

Physics
How does the resultant of two vectors change as the angle between the two vectors increase?
Friday, September 30, 2011 at 2:54pm by Lala

CALCULUS!!!!!
Given the vectors a = (1, 3, 4) and b = (4, 5, -4), what is the angle between the two given vectors to the nearest degree?
Wednesday, July 2, 2008 at 5:50pm by Mathlicious

Physics
speed, of a snail or otherwise, is a scalar. Add direction, and it is a vector. Multiply, or to divide vectors is a little complicated. ordinary multiplication or division results in a vector. dot product results in a scalar cross product results in a vector which is ...
Saturday, January 31, 2009 at 12:22pm by bobpursley

vectors
Given the vectors v=-2i+5j and w=3i+4i, determine (do I just plug what is given? but how would I find the length? is there a special way to solve vectors?) 1. 1/2 v 2. w-v 3. length of w 4. the unit vector for v Use the pythogrean theorm to find length of w, i,j are at right ...
Monday, August 6, 2007 at 3:09pm by Anonymous

physics
two vectors A and B have magnitude such that A>B. We do not know the directions of the vectors. however we can say that the magnitude of the sum A+B must be between? a) B and 2A b)A and A+B c) A-B and A+B d) A-B and A e) B and A+B
Thursday, September 27, 2012 at 7:21pm by Kylie

Calculus
Suppose vectors a and b are vectors such that a x b =(3,1,4). What is the cross product of twice of a with twice of b?
Tuesday, April 17, 2012 at 7:40pm by Jake

Vectors
A square is defined by the unit vectors i and j. Find the projections of i and j on each of the diagonals of the square.
Saturday, May 22, 2010 at 11:33pm by Anonymous

Vectors
the vector a-5b and a-b are perpendiculat. If vector a and b are unit vectors, then determine axb
Thursday, May 13, 2010 at 7:13pm by Marie

Vectors
Use vectors u, v and w given below to find each expression. (1) v times w (2) v times u
Friday, February 22, 2008 at 10:31pm by Gilligan

physics
Add the two displacement vectors. This will tell you the magnitude and direction of the resultant. If you do not understand how to add vectors, I suggest a review or private tutoring in that subject.
Wednesday, February 16, 2011 at 12:51am by drwls

physics
draw the figure. draw the force vectors from all corners. Add them as vectors. If you use arguments of symettry, you can avoid one adjacent corner.
Tuesday, September 21, 2010 at 4:37pm by bobpursley

Physics
Add as vectors the forces due to the charges at the opposite corners. This requires a knowledge of Coulomb's law and how to add vectors. I assume you are familiar with both.
Monday, January 26, 2009 at 3:42pm by drwls

Vectors
Bob, Here is the entire question: Use vectors u, v and w given below to find each expression. (1) v X w (2) v X u (3) (u X v) X w u = 2i - 3j + k v = -3i + 3j + 2k w = 1 + j + 3k
Friday, February 22, 2008 at 10:31pm by Gilligan

physics
A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5.0 m, B= 15 m, and C = 18 m. Using the component method, find the magnitude and direction è of the resultant vector
Friday, February 8, 2013 at 6:40pm by james

Physics
70 cm is the distance, not displacement. His travels are vectors, and you have to add them as vectors. He is flying at 10relative to the wind, but the wind is pushing him back at 2.5. HMMMM. What do you think.
Wednesday, February 4, 2009 at 9:10pm by bobpursley

physics
COMPONENTS OF VECTORS Vectors are not given all the time in the four directions. For doing calculation more simple sometimes we need to show vectors as in the X, -X and Y, -Y components. components of vector For example, look at the vector given below, it is in northeast ...
Sunday, October 28, 2007 at 1:24pm by sunday

CALCULUS 3
The scalar triple product P among three vectors U,V and W is defined as follows: P=U.(VxW) |P| represents the volume of the parallelepiped formed by the vectors U, V and W. Consequently, if U, V and W are coplanar, P=0. Since 4 points (A,B,C,D) are given, three vectors can be ...
Thursday, February 24, 2011 at 2:16am by MathMate

physics
You seem to have omitted unit vectors (such as i, j, k) from your question, and you also have not named the three separate vectors you are talking about. Incomplete questions cannot be answered
Wednesday, February 13, 2013 at 3:17pm by drwls

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