208 Answered Questions for the topic Vectors

Vectors Linear Transformations

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...
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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

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?

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

Vectors

04/24/16

#### Carrom board how the queen at the centre. The queen hit by the striker moves to front edge rebounds and goes in the hole behind striking line.

In above question find magnitude of displacement of queen from centre to the front edge

Vectors

04/14/16

#### If a force of 30 pounds is directed 30° from the vertical, what vector represents this force?

If a force of 30 pounds is directed 30° from the vertical, what vector represents this force?

Vectors

04/14/16

#### Determine the angle measure between vectors u and v: u = – 3i + 3j and v = 3i + 2j

Determine the angle measure between vectors u and v: u = – 3i + 3j and v = 3i + 2j

Vectors

04/14/16

#### Determine the angle measure between vectors u and v: u = 4i – 2j and v = i + 3j

Determine the angle measure between vectors u and v: u = 4i – 2j and v = i + 3j .

Vectors

04/14/16

#### Let v=square root of 2i - 3 square root of 2j. Find a vector, w, that is 4 times the length of v and points in the same direction as v.

Let v=square root of 2i - 3 square root of 2j. Find a vector, w, that is 4 times the length of v and points in the same direction as v.

#### Maths Vectors Question

Show that, for all vectors, u and v, |u x v|^2 = |u|2|v|2 - |u.v|2

03/17/16

#### Trig Vector Question, What is the ground speed of the plane?

An airplane has an airspeed of 500 kilometers per hour bearing N45°E. The wind velocity is 60 kilometers per hour in the direction N30°W. Find the resultant vector representing the path of the...
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02/24/16

#### Find the inequalities inside a right angle triangle

the right angle triangle ABC has three vertices A(-3,5) B(3,5) C(-3,-1) the equation of the line BC is y= x + 2 write down the inequalities which define the region INSIDE the triangle ABC the...
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#### What are the components in terms of the angle & magnitude?

What are the x & y components of vector E in terms of the angle σ & the magnitude E?
For the same vector, what are the x & y components in terms of the angle ø & the magnitude...
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Vectors

02/02/16

#### A canoe sets out on a course given by the vector <5,11>. What is the length of the canoe's course to the nearest unit?

i need the distance to the nearest degree

01/21/16

#### How do you add 2D vectors a+b with the component method?

How do you add 2D vectors a+b
if the magnitude of vector a is 10, its angle with (+) x-axis is 45 and angle with (+) y-axis is 45 ...
then vector b has a magnitude of 3 angle with (+) x-axis...
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Vectors Linear Algebra

01/08/16

#### equations and vectors

Given the following parametric equation of the line l:x = 2 − 7t, y = 3 + 4t, z = −t, t ∈ R,give two points on l and a vector parallel to l.

Vectors Linear Algebra

01/08/16

#### Find the Equation of the plane

Find the equation of the plane which contains the point ( 2/3, −1, 3) and has normalvector 3i − 2j + 9k. Also, find another two points on this plane which are differentfrom ( 2/3, −1, 3).

Vectors Physics

01/08/16

#### A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 6.5 m/s. At the same time, it has a horizontal velocity of 2.0 m/s.

how would you solve this? thanks

Vectors Physics

01/07/16

#### A diver running 1.7 m/s dives out horizontally from the edge of a vertical cliff and 3.5 s later reaches the water below. How high was the cliff?

how would you solve this?

Vectors Physics

01/06/16

#### A ball thrown horizontally at 22.1 m/s from the roof of a building lands 31.0 m from the base of the building. How high is the building?

how would you do this?

Vectors Physics

01/06/16

#### A ball is thrown horizontally from the roof of a building 54 m tall and lands 35 m from the base. What was the ball's initial speed?

how would you do this?

Vectors Physics

01/06/16

#### A ball is thrown horizontally from the roof of a building 54 m tall and lands 35 m from the base. What was the ball's initial speed?

how would you solve this??

#### Evaluating with Vectors

For the vectors u=(-3,-2) and v=(4,-2), evaluate the following:
a) The magnitude (length) of vector u (simplified radical form)
b) A unit vector in component form which has the same direction...
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#### Repeated posting: Add these vectors or subtract them? corrected a typo in the problem

A jet plane intended to be on a velocity and course of 870 knots, 44 degrees south of west encounters wind. The flight tower shows that their actual velocity and path is 840 knots, 49 degrees...
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