# physics: scalars/vectors

74,255 results

### Vectprs and Scalars

Why are some of these scalars and others are vectors? What's the difference and how can you tell? 1. a dot (b x c) 2. (a dot b) x (b dot c) 3. (a + b) dot c 4. a x (b dot c) 5. (a x b) dot (b x c) 6. (a + b) x c 7. a dot (b dot c) 8. (a x b) + (b x c) 9. (a x b) - c 10. a x (b...

### Dynamics

Which one of the following statement is correct Multiple choice question a)Energy and work are scalars b)Force and work are vectors c)Energy, momentum and velocity are vectors d)Force, momentus and velocity are scalars

### Physics

please check these: which of the following is an example of a vector quantity? a. velocity b. temperature c. volume d. mass i picked A identify as vecor or scalar 1. speed of a snail---vector 2. the time it takes to run a mile-scal 3. the free-fall accleration---vector 3. ...

### dyanamics

Which one of the following statements is correct? (a) Energy and work are scalars (b) Force and work are vectors (c) Energy, momentum and velocity are vectors (d) Force, momentum and velocity are scalars

### 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.

### physics: scalars/vectors

Please check. 1. Which of the following quantities are scalars, and which are vectors? a. the acceleration of a plane as it takes off- VECTOR b. the number of passengers on the plane- SCALAR c. the duration of the flight- SCALAR d. the displacement of the flight- VECTOR e. the...

### math

The vectors u, v are given by u = 3i + 5j, v = i - 2j. Find scalars a, b such that a(u + v) = 8i + (b - 2)j

### math

The vectors u, v are given by u = 3i + 5j, v = i - 2j. Find scalars a, b such that a(u + v) = 8i + (b - 2)j

### linear algebra

Show that a subset W of a vector space V is a subspace of V if and only if the following condition holds: If u and v are any vectors in W and a and b are any scalars, then au + bv is in W.

### Physics (vectors)

Given vectors A= (Axi + Ayj), B= (Byj+Bzk) and C= (Cyj + Czk). a) find the triple product of these vectors defined by A dot (BxC) in terms of the vector components. I get 0 as the answer. b) is the result found in a) a scalar of a vector? since I had to multiply finally by the...

### physics

Matt runs away from Ashley. Matt runs 40 m north and 30 m west. What is the minimum distance Ashley must run to catch Matt? Draw the image and label the vectors and scalars.

### Linear Algebra

Let B be the set of vectors in R^3 given by B = (1, 1, 0) , (1, 1, 1) , (0, 1, −1). 1. For x = (x1, x2, x3)^T a vector in R^3, find the scalars c1, c2, c3 (that will depend on x1, x2, x3) such that x = c1(1, 1, 1) + c2(1, 1, 1) + c3(0, 1, −1) Can anyone help me solve this...

### algebra

Is this set a subspace of R3 or not? Explain why or why not. Span{[1 2 1],[-1 1 3]} I've tried to do a three variable three unknown equation to solve for the scalars for each of the vectors but when doing it got very wrong numbers.

### PreCalc

QP is (x y) = (3 -1) + r (14 10) QR is (x y) = (3 -1) + s (17 -9) PR is (x y) = (0 18) + t (5 -7) where r, s, and t are scalars. 1. Use vector methods to find the coordinates of P, Q, and R. 2. Find vectors PQ and PR and evaluate PQ*PR 3. Find size of QPR 4. Find the area of ...

### PreCalc

QP is (x y) = (3 -1) + r (14 10) QR is (x y) = (3 -1) + s (17 -9) PR is (x y) = (0 18) + t (5 -7) where r, s, and t are scalars. 1. Use vector methods to find the coordinates of P, Q, and R. 2. Find vectors PQ and PR and evaluate PQ*PR 3. Find size of QPR 4. Find the area of ...

### physics 4

help me in this topicsmass vol.relationship,graphs and itinterpretation,vectors and scalars help me more to understand this topics the tools in physics,measurement,vectors and scales It is quite impossible to divine what you don't understand. We can easily critique your ...

### 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) ...

### Physics

Please help me with this its very hard to visualize the problem. The analytical method of adding vectors expressed in terms of their components may be applied to vectors in three dimensions, for which graphical work is inconvenient. Find the magnitude of the resultant of the ...

### Physics

2 vectors have same magnitude.The magnitude of the resultant vector of these 2 vectors are same as either of both vectors.What is the angle between 2 vectors?

### Vectors/Scalars?

is (u dot v)dot (a dot c) a scalar quantity or vector quantity? What's the difference? (I'm thinking scalar since it has no direction and it only has magnitude.)

### physics multiplying vectors

n the product F = qv · B , take q = 4, = 2.0i + 4.0j + 6.0k and = 136i -176j + 72k. What then is in unit-vector notation if Bx = By? ~~may i get some assistance in this problem? so far.. i tried this.. 136i-176j+72k = 4(2.0i+4.0j+6.0k)(B) 136i-176j+72k = (8i+16j+24k)(B) [(...

### 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?

### 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

### 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?

### Physics

I don't know if my answers are right. D: 1)Why is a time interval always positive? I'm not really sure but I wrote down something with vectors and scalars. 2)If the average acceleration of a car is zero in a given time interval, what can you tell about the displacement of the ...

### Physic Worksheets?

Hi! I have a few tests coming up and I need some practice Physics worksheet/tests. I have already done the worksheets and previous tests, but I still need more practice. Does anyone know a site that I can get some practise problems? Doing a google search only leads to higher ...

### physics

Which of :acceleration,age,speed,temperature,and velocity are vector quantities? Are any of them scalars?

### 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 ...

### 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 ...

### physics

The vectors sum of two vectors of magnitude 10units and 15units can never be

### Physics

Find the vector cross product of two vectors C=2i-j and D=i+2j-3k. What is the angle between the vectors

### 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?

### physics

Find the vectors.sum of ihe three vectors A=-3i-2j+7k, B=i+3j+k, C=-k

### Physics

If the vectors A and B are such that |A+B|=|A-B, then find the angle between vectors A and B?

### 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?

### 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

### 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

### 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.

### Physics

Given the displacement vectors A = (7.00 - 1.00 + 3.00 ) m and B = (6.00 + 5.00 - 3.00 ) m, find the magnitudes of the following vectors and express each in terms of its rectangular components. (a) C = A - B (b) D = 3A + B

### physics only solve now

the greatest and least resultant of vectors are 21 N and 7 N respectively.find the two vectors

### 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.

### 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.

### Physics

The sum & difference of two non-zero vectors Ä & B are equal in magnitude.what can you conclude about these vectors?why?

### Science

2 vectors have same magnitude.The magnitude of the resultant vectors is same as either of both vectors.What is the angle between 2 vectors?

### Physics

Consider two vectors one of magnitude 3 and the other 4 unit, which of the following is not correct? We can combine these vectors to yield a resultant of. A.7 B.5 C.1 D.0

### Calculus and Vectors

THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a dot b

### Math

Let a, b, and c be unit vectors, such that a+b+c=0. Show that the angle between any two of these vectors is 120 degrees. I proved this geometrically, but now my teacher wants a proof using vectors, and I don't know what to do.

### Physics

Vectors and Scalars Graph 1. determine the total distance traveled and the displacement made. A. 5.0 km 15 degrees east of north B. 5.0 km 20 degrees east of south C. 5.0 km east D. 5.0 km 30 degrees south of west E. 5.0 km 20 degrees east of south F. 5.0 km 40 degrees north ...

### 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.

### physics

Consider two vectors ~ A and ~ B and their re- sultant ~ A + ~ B . The magnitudes of the vectors ~ A and ~ B are, respectively, 13 . 2 and 6 . 1 and they act at 110 ◦ to each other.Find the magnitude of the resultant vector ~ A + ~ B .

### Physics

If a&b are vectors such that a+3b=-3i+j & a-b=i-2j then find vectors a&b.

### Calulas and VECTORS

THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a * b

### 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 ...

### 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 ...

### 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.

### 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

### 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

### 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?

### 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

### Physics

Two vectors are at right angle to each other as shown. Find the resultant vector (the sum of the two vectors).

### 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

### AP physics

Can two vectors, of unequal magnitude, add up to give the zero vector? Can three unequal vectors? Under what condition?

### Physics

The sum of two vectors of fixed magnitudes has the greatest magnitude when the angle between these two vectors are?

### Math

Let u= (2,1,0,1,-1) and v=(-2, 3, 1, 0,2). Find scalars a and b so that au-bv=(-8,8,3,-1,7)

### Physics

What is the resultant of two displacement vectors having the same direction? a. The resultant is the sum of the two displacements having the same direction as the original vectors. b. The resultant is the difference of the two displacements having the same direction as the ...

### Physics

How does the resultant of two vectors change as the angle between the two vectors increase?

### Physics

How does the resultant of two vectors change as the angle between the two vectors increase?

### Vectors

THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a * b

### Physics Help!!!!

Describe what it means (describe the motion) if the acceleration vector has the same direction as the velocity vectors, and what it means if the acceleration vector has the opposite direction as the velocity vectors. Consider all four possibilities and explain what would ...

### Physics Help!!!!

Describe what it means (describe the motion) if the acceleration vector has the same direction as the velocity vectors, and what it means if the acceleration vector has the opposite direction as the velocity vectors. Consider all four possibilities and explain what would ...

### Physics

A football player runs the pattern given in the drawing by the three displacement vectors , , and . The magnitudes of these vectors are A = 6.00 m, B = 13.0 m, and C = 15.0 m. Using the component method, find the (a) magnitude and (b)direction of the resultant vector + + . ...

### physics

A football player runs the pattern given in the drawing by the three displacement vectors , , and . The magnitudes of these vectors are A = 4.00 m, B = 15.0 m, and C = 18.0 m. Using the component method, find the (a) magnitude and (b)direction of the resultant vector + + . ...

### physics

the vectors sum of two vectors of magnitudes 10 units and 15 units can never be?

### 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?!

### Physics

A student accurately uses the method for combining vectors. The two vectors she combines have magnitudes of 55 and 25 units. The answer that she gets is either 85, 20, or 55. Pick the correct answer, and explain.

### Physics

A football player runs the pattern given in the drawing by the three displacement vectors A ,B ,C and . The magnitudes of these vectors are A = 4.00 m, B = 17.0 m, and C = 19.0 m. Using the component method, find the (a) magnitude and (b)direction of the resultant vector A + B...

### physics

Consider the directions of the velocity and the acceleration vectors of an object in uniform circular motion. A. Both vectors point away from the center. B. The velocity points along the tangent, and the acceleration is zero, since the speed is constant. C. The velocity points...

### PHYSICS

Vector A⃗ points in the negative x direction and has a magnitude of 22 units. The vector B⃗ points in the positive y direction. partA:Find the magnitude of B⃗ if A⃗ +B⃗ has a magnitude of 37 units. partB: Sketch A⃗ and B⃗ . Draw the vectors with their tails at ...

### Physics (vectors)

Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)

### Physics (vectors)

Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (-12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (-1, −3) − (5, g) = (h, 2)

### Physics

1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the negative y-axis.Use graphical methods to find the...

### Science

Two equal vectors are working at a point.The resultant is equal to one of those vectors.Prove that the resultant bisects the angle between the vectors.

### 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 ...

### Physics

The maximum and minimum magnitudes of the resultant of two given vectors are 17N and 7N respectively. If two vectors are at right angles to each other, then find the magnitude of their resultant?

### physics

The problem concern the position vectors r1=2.43mi-4.74mj and r2=-3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +x-axis.

### physics

The problem concern the position vectors r1=2.43mi-4.74mj and r2=-3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +x-axis.

### physics

The problem concern the position vectors r1=2.43mi-4.74mj and r2=-3.02mi+0.85mj. Find the angle between the two vectors. Hint: Find the angle each makes with the +x-axis.

### 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?

### Math - vectors

For what value of t are these two vectors parallel? a) r = 4i + tj and s = 14i - 12j What I Know: vectors are parallel if one is a scalar multiple of the other. I need to find a way that r and s relate by finding what number you can multiply r by to equal s. What I Don't Know...

### 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 ...

### 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 ...

### physics [vectors]

The concept i get, but somehow i just can't execute this problem, please help me! You are given vectors A = 5.5 6.2 and B = - 3.7 7.4 . A third vector C lies in the xy-plane. Vector C is perpendicular to vector A and the scalar product of C with B is 19.0. I need x and y ...

### physics

Vector A is given by A = c x + 6 y, and vector B is given by B = 4.8 x - 16.2 y, where x and y are the x and y unit vectors. What does c need to be such that these two vectors are perpendicular?

### physics

Suppose vector A=3i-2j, B= -i-4j and vector C are three vectors in xy plane with the property that vectors A+B-C. What is the unit vector along vector C?

### physics

if magnitude of sum of two unit vectors is root2 then find the magnitude of subtraction of these unit vectors

### Physics

Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 16.0 m, B = 12.0 m, C = 13.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the resultant that occurs ...

### physics

Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 15.0 m, B = 10.0 m, C = 12.0 m, and D = 29.0 m. Determine the (a) magnitude and (b) direction for the resultant that occurs ...

### physics

Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 17.0 m, B = 10.0 m, C = 11.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the resultant that occurs ...

### physics

Three vectors are shown in Fig. 3-32 (A = 62.0 , B = 58.0°). Their magnitudes are given in arbitrary units. Determine the sum of the three vectors. (a) Give the resultant in terms of components. Rx = Ry = (b) What is the magnitude of the resultant? What is the resultant's ...