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121 Answered Questions for the topic vector

Vector

06/08/16

find the equation of the line that is parallel to (x,y,z)=(2,3,7)+t(3,0,1) and goes through the point P(-1,2,6)

I am having trouble with this question
Vector

05/11/16

Vector question

The x and y components of vector P have Numerical values 6 and 6 respectively and that of (P vector + Q vector) have Numerical values 10 and 9. What are the Numerical values of X and y components... more
Vector Biology Zoology

04/29/16

Vector Genetics DNA

You digest a 2000kb region of DNA with EcoRI and get three fragments. The middle fragment is 300bp. You take the middle fragment and clone it into a vector that is 700bp. a) How large will the... more
Vector

04/14/16

If a force of 50 pounds is directed 30° from the horizontal, what vector represents this force?

If a force of 50 pounds is directed 30° from the horizontal, what vector represents this force?
Vector Math Maths

04/07/16

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... more
Vector Physics Angle

02/03/16

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... more
Vector Math Physics

02/03/16

What is the value of its y-component?

A position vector with magnitude 10m points to the right & up.  Its x-component is 6.0m.  What is the value of its y-component?

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... more
Vector

11/22/15

45 km east followed by 85 km at 45 degrees north of west. what is the resultant displacement?

 this is the direction of a driver 
Vector Math Velocity

11/18/15

Vectors applied math

You swim at 3km/h directly across a stream with a current of 5km/h. Your actual velocity is the vector sum of the streams velocity snd your swimming velocity. Find the magnitude of your actual... more

Vectors, Speed, and Constant Acceleration.

A rocket blasts off and moves straight upward from the launch pad with constant acceleration. After 3.0 seconds the rocket is at a height of 77 meters. (a) What are the magnitude and direction of... more
Vector Science Physics

09/07/15

Vector displacement problem (Physics)

Consider two vectors F~1 with magnitude 81 Ninclined at 281?and F~2 with magnitude 52 Ninclined at 228?, measured from the positivex axis with counterclockwise positive.What is the magnitude of the... more

08/31/15

Question about vector.

Vectors A B C are given. A= x component is -5.00...y component is -7.00..............................................................B= xcomp is -9.00... ycomp is... more

08/17/15

I need help with calculus summer homework!

1. Describe the components of the vector v(t)=<t2,5t> and the meaning of this vector.   2. Convert the following parametric equation into a rectangular equation: {x(t)=5cost}    ... more
Vector Velocity

05/18/15

Barbara can swim at 4km/h in still water.

She wishes to swim across a river to a point directly opposite from where she is standing.?The river is moving at a rate of 5km/h. Explain, with the use of a diagram, why this is not possible.Isn't... more
Vector Math Physics

05/09/15

Physics projectile question.

You’re 6.00 m from one wall of a house. You want to toss a ball to your friend who is 6.00 m from the opposite wall. The throw and catch both occur at 1.00 m above the ground.   Here is a link to... more
Vector

05/02/15

Vectors:right triangle, two vertex known and a direction vector parallel to unknown point

The endpoints of the hypotenuse of a right triangle ABC are A(-10,10,9) and B(14,0,-4). The point C lies on the line that passes through the point A and is parallel to the vector 2i-2j-k. Determine... more

04/27/15

Suppose S_1={u_1,u_2} and S_2={v_1,v_2} are each independent sets of vectors in an n-dimensional vector space V.

Let us assume that every vector in S_2 is a linear combination of vectors in S_1.Question: Does that mean that S_1 and S_2 are bases for the same subspace of V?I know that the answer to this... more
Vector

03/14/15

The rectangular coordinates of a point are given. Find polar coordinates for the point.

The rectangular coordinates of a point are given. Find polar coordinates for the point. (Enter your answer using r > 0 and 0 ≤ θ < 2π. Round your answers to two decimal places.)(1.3,... more
Vector

03/14/15

Consider the following vectors.

Consider the following vectors.v = 3i + 4j, w = 4i + 3j   (a) Find the angle between v and w.     please help!!!
Vector

03/14/15

Write this expression in the standard form a + bi.

Write this expression in the standard form a + bi.   (2(cos(pi/10)+isin(pi/10)))^5
Vector

03/14/15

An airplane has an airspeed of 500 kilometers per hour bearing N45°E.

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... more
Vector

03/14/15

A DC-10 jumbo jet maintains an airspeed of 550 miles per hour in a southwesterly direction.

A DC-10 jumbo jet maintains an airspeed of 550 miles per hour in a southwesterly direction. The velocity of the jet stream is a constant 93 miles per hour from the west. Find the actual speed and... more
Vector

03/12/15

If ||v|| = 8, what is ||-5v||?

Please help!!!

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