256 Answered Questions for the topic Vectors

Vectors Linear Algebra

04/14/17

Find an equation for the plane that passes through (2,4,-1) and contains the line of intersection of the planes x-y-4z=2 and -2x+y+2z=3
I have no idea what Im doing wrong but I keep getting the wrong answer. What I did first was find two points. So I set z=0 and x=0 . Then I created two vectors and did the cross product for ABxAC... more
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Vectors

04/13/17

Find component form of v given its magnitude and the angle it makes with the positive axis
||v||=6  the angle = 45 degrees 
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Vectors

04/05/17

A plane is taking off with a velocity of 345 m/s making an angle of elevation of 48 degrees with the horizontal.
A plane is taking off with a velocity of 345 m/s making an angle of elevation of 48 degrees with the horizontal. Find the components of the planes magnitude. How fast is the plane going up... more
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Vectors

03/26/17

Given the points A(2,-1,4) B(-1,0,3) , find a unit vector parallel to AB ?
Given the points A(2,-1,4) B(-1,0,3) ,   a) find a unit vector parallel to AB ? b)find a vector parallel to AB and oppositely directed to AB with a length of 4.    I dont understand what to do.
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03/23/17

Using vectors, find displacement.
The hour hand of a world famous clock is 2.74M long while the minute hand is 4.2M long. Determine the displacement from the tip of the hour hand at -12.30 and 13.17 Calculate distance travelled... more
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Vectors Physics

03/22/17

How do you solve this physics problem?
An airplane flying parallel to the ground undergoes two consecutive displacements. The first is 75 km 30.0° west of north, and the second is 155 km 60.0° east of north. What is the total... more
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Vectors Physics

03/22/17

How do you solve this physics problem
During a rodeo, a clown runs 8.0 m north, turns 55° north of east, and runs 3.5 m. Then, after waiting for the bull to come near, the clown turns due east and runs 5.0 m to exit the arena. What is... more
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Vectors Physics

03/22/17

How to solve physics problem
A plane travels 2.5 km at an angle of 35° to the ground and then changes direction and travels 5.2 km at an angle of 22° to the ground. What is the magnitude and direction of the plane’s total... more
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Vectors

03/09/17

there are two vectors say vector A and vector B. Then what is vector AB?
there are two vectors say vector A and vector B. Then what is vector AB? Is it (A-B) or (B-A)?
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03/08/17

Determine the angle between vectors p and q if (p-3q) is perpendicular to (3p+2q) and |p|=2|q|.
I would like some help on just how to solve these kind of problems as I am stuck on it.
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Vectors Physics

12/07/16

In what direction should the plane head to reach its destination and how long will it take to get there?
An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18 m/s northward and the air speed of the plane is 161 m/s, in what direction should the plane head to reach its... more
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12/07/16

Find the resultant of the vectors A, B, and C
Vector A has magnitude 58 units and is inclined to the positive axis of x at 42 degrees. Vector B has magnitude 36 units and is inclined to the positive axis of x at 121 degrees. Vector C has... more
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11/27/16

Determine how far a ball of 2kg will travel if thrown at 45 degrees from rest at 5m/s
I need to know the distance the ball will travel for a special work for physics class and just to learn in general.
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Vectors

11/24/16

v = −i+2j+k, w = −3i+6j+3k Find the angle θ between the vectors v and w
v = −i+2j+k, w = −3i+6j+3k Find the angle θ between the vectors v and w
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Vectors

11/24/16

v = (4,2,−1), w = (8,4,−2) Find the angle θ between the vectors v and w
v = (4,2,−1), w = (8,4,−2) Find the angle θ between the vectors v and w
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10/08/16

Vector Functions and Space Curves PLEASE HELP!
At what points does the curve r(t) = ti + (4t − t^2)k intersect the paraboloid z = x^2 + y^2? (If an answer does not exist, enter DNE.)   smaller t-value (x, y, z) = larger t-value (x, y, z)... more
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Vectors Math Calculus Vector

10/03/16

12.5: Equations of Lines and Planes
Find an equation of the plane.The plane through the point (7, −8, −4) and parallel to the plane 9x − y − z = 1
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10/03/16

CALC 3 : Is the line through (-4, -6, 1) and (-2, 0, -3) parallel to the line through (8, 19, 8) and (3, 4, 18)?
Is the line through (−4, −6, 1) and (−2, 0, −3) parallel to the line through (8, 19, 8) and (3, 4, 18)?   Please use something along the lines of parametric and symmetric equations! This is... more
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09/30/16

Vectors - Calculus 3
A clothesline is tied between two poles, 6 m apart. The line is quite taut and has negligible sag. When a wet shirt with a weight of 0.6 kg is hung at the middle of the line, the midpoint is pulled... more
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09/29/16

VECTORS!? PLEASE HELP!
A clothesline is tied between two poles, 10m apart. The line is quite taut and has negligible sag. When a wet shirt with a weight of 0.8 kg is hung at the middle of the line, the midpoint is pulled... more
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07/10/16

Let V be the vector set in R2 with the following: Addition: [x1x2]?[y1y2]=[0x2+y2] Scalar Multip.: a?[x1x2]=[0ax2] Which of 8 Vector Space Axioms are met?
I cannot for the life of me figure out which of these I am missing and/or over-including in my response to this question.
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06/13/16

Special Subspaces Proof
Let L: Rn -> Rn be  linear mapping. Assume that {v1,...,vn} is a basis for Rn such that {v1,...,vk} is a basis for Ker(L). Prove that {L(vk+1),...,L(vn)} spans Range(L).   Not sure how to go... more
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Vectors

05/23/16

An object placed on a ramp slides to the ground. If ramp makes angle of 40 degrees with ground and object weighs 25 pounds, find the acceleration of the object.
Vector application
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Vectors

05/18/16

A pencil case contains 14 yellow, 6 green, 10 purple and 12 red markers mixed together
a) what is the probability of selecting 2 green markers and 3 red markers if you select 5 markers?   b) what is the expected number of red markers among 5 markers pulled from the box?
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Vectors

05/13/16

two vectors have magnitudes of 5.2 and 7.3. The dot product of the vectors is 20. what is the angle between the vectors?
 I need help with this question
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