Monday

April 21, 2014

April 21, 2014

Number of results: 2,207

**Physics**

Josh, if you dont know how to add two ninety degree vectors, and you are now in statics, something is greatly wrong. http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/vectors/u3l1b.html
*Thursday, August 6, 2009 at 7:28pm by bobpursley*

**physics.**

What does concurent mean? In the same direction? What does opposite mean? If at right angles, you have to use the pyth theorem. http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/vectors/u3l1b.html
*Thursday, January 17, 2008 at 11:33pm by bobpursley*

**Physics**

http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/vectors/u3l1b.html
*Monday, June 9, 2008 at 5:52pm by drwls*

**Phys... vectors**

wow...lol...look at what one little mistake can do THANKS!~ i got it now
*Thursday, October 9, 2008 at 8:42pm by Kim K*

**Phys... vectors**

On the cross product. ixj=k but jxi=-k. I think you missed the minus The equation on the dot is correct.
*Thursday, October 9, 2008 at 8:42pm by bobpursley*

**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*

**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*

**physics**

i dont understand the projectile motion...my teacher said...it's a motion of a body confined to a vertical plane, perpendicular to Earth's surface... I dont get it, can anyone explain to me clearly???? plzzzzz....THX!!!! If your teacher said that, she was wrong. I doubt if she...
*Wednesday, November 29, 2006 at 7:03pm by Katrina*

**science**

I am in middle school and we are doing a catapult projectile lab. The question is, using knowledge of force, motion and projectiles, can a catapult be built to accurately project a marshmellow toward a designated target. We have to change the angle of release and measure ...
*Sunday, October 22, 2006 at 8:39pm by Wendi*

**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*

**Phys**

I would use your distance formula to find both distances. Then, use F=GMM/dis^2, but remember to add them as vectors (break up each force as components up and along x axis).
*Sunday, November 15, 2009 at 3:23pm by bobpursley*

**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*

**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*

**phys**

At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the xy plane with an acceleration ->a = (4.0ihat+ 3.0jhat)m/s^2. Assume t is in seconds. Determine the position of the particle as a function of time t. Express your answer in terms of the unit vectors ihat ...
*Tuesday, September 15, 2009 at 4:16am by physics*

**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*

**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*

**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*

**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*

**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*

**Maths**

Hello how do we get the resultant force of a vector id the the forces were in different directions ? and how do we use the parellogram thingi do we just add the forces? please can some1 explain me this in their own words thanks alot Since this is not my area of expertise, I ...
*Thursday, June 7, 2007 at 2:26pm by Acer*

**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...........................*

**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*

**Phys... vectors**

Consider the following three vectors: a = 3i + 4j ; b = pi + 2j ; c = mi + nj , where m, n and p are constants. If: a + b = 9i + 6j a.c = 10 b x c = 2k Show that p = 6, and determine values for m and n. i got the p=6 as for the rest...what i did so far b x c = 2k so (6i ...
*Thursday, October 9, 2008 at 8:42pm by Kim K*

**physics**

if the * is the degrees, then you need to draw the vectors according to their direction. you can use a graph paper and make your own scale: say one unit cube is 10km/hr. then use the protractor to draw the vectors taking an horizontal line as zero degrees. then draw the ...
*Thursday, June 6, 2013 at 3:57am by bonjo*

**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*

**phys**

Given Vector A with magintude 9.17 feet and Vector B with magnitude of 10.58 feet, what is the resultant of the two vectors added together? Asn: Do we just add to the values together? 19.75 ft???
*Monday, August 29, 2005 at 11:20am by Jawad*

**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**

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 below, imgur ...
*Sunday, March 18, 2012 at 12:09am by Melissa*

**phys**

1. A vector has (at minimum) how many parts associated with it? 2. When adding three vectors graphically one needs to: a. Spin each one like a spinner on a board game. b. Do nothing because more than two vectors cannot be added graphically c. draw all the tails at the same ...
*Monday, August 29, 2005 at 1:54pm by Jawad*

**physics**

if the * is the degrees, then you need to draw the vectors according to their direction. you can use a graph paper and make your own scale: say one unit cube is 10km/hr. then use the protractor to draw the vectors taking an horizontal line as zero degrees. then draw the ...
*Thursday, June 6, 2013 at 3:57am by d*

**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*

**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*

**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*

**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*

**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*

**college physics**

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

**classroom instruction 9not sure if i am right)**

Yes -- if those are in the phys ed guidelines. Remember, this is what the state feels kids should know by the end of 4th grade. That means that their phys ed classes in the earlier grades are leading up to these competencies.
*Friday, February 19, 2010 at 8:52pm by Ms. Sue*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**engineering science N4**

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

**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*

**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*

**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*

**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*

**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*

**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**

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*

**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 **

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*

**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*

**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.*

**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 to verify ...
*Thursday, September 22, 2011 at 9:06pm by MathMate*

**physics**

Given the vectors = (19 cm, -7 cm) in green and = (-23 cm, 9 cm) in blue shown on the grid below, calculate the magnitude of the vectors described below and select the correct sketch for each from the choices below. The tail-to-head method is used to represent the operations ...
*Tuesday, October 15, 2013 at 12:30am by butcha*

**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*

**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*

**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 **

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

**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*

**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*

**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*

**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*

**Physics**

Find the scalar product of the vectors ai+bj and bi-aj . Where a and b are arbitrary constants. What's the angle between the two vectors?
*Thursday, May 30, 2013 at 9:03am by Jacob*

**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*

**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*

**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*

**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
*Wednesday, July 11, 2012 at 1:53pm by Q8*

**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
*Wednesday, July 11, 2012 at 2:02pm by Q9*

**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*

**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*

**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...........................*

**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**

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*

**science**

Thank you for using the Jiskha Homework Help Forum. Here are some sites for you: 1. http://www.glenbrook.k12.il.us/GBSSCI/PHYS/CLASS/newtlaws/u2l3a.html 2. http://en.wikipedia.org/wiki/Newton's_laws_of_motion 3. http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html ...
*Wednesday, October 24, 2007 at 9:50am by SraJMcGin*

**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*

**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*

**Maths-can someone explain something to me???**

this is a forum_search_20140419 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...
*Monday, February 18, 2013 at 12:48pm by Steve*

**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*

**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*

**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*

**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**

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*

**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*

**Science**

2 forces of 5N&7N respectively act on an object. (a) When will the resultant of 2 vectors be at a maximum? (b) When will the resultant of the 2 vectors be at a minimum?
*Sunday, January 19, 2014 at 12:33am by Lesed*

**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*

**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*

**Physics**

Opposite directions? Subtract (or add if you are doing it as vectors). In Vectors, opposites subtract to give a lesser magnitude.
*Wednesday, September 18, 2013 at 11:17am 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*

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