1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
soldi70 [24.7K]
3 years ago
9

Vector A has a magnitude of 30 units. Vector B is perpendicular to vector Aand has a magnitude of 40 units. What would the magni

tude of the resultant vector A + B be?
Physics
1 answer:
Fudgin [204]3 years ago
3 0

Answer:

|\vec A + \vec B| = 50 units

Explanation:

As we know that magnitude of two vectors is given as

|\vec A + \vec B| = \sqrt{A^2 + B^2 + 2AB cos\theta}

here we know that

A = magnitude of vector A

B = magnitude of vector B

\theta = angle between two vectors

so here we know that

A = 30 units

B = 40 units

angle = 90 degree

so we have

|\vec A + \vec B| = \sqrt{30^2 + 40^2 + 2(30)(40)cos90}

|\vec A + \vec B| = \sqrt{30^2 + 40^2}

|\vec A + \vec B| = 50 units

You might be interested in
(Astronomy)
olya-2409 [2.1K]

Answer:c ITs C ^w^

Explanation:

4 0
3 years ago
What happens to the acceleration of a ball as it is dropped off a clift?
denpristay [2]

Answer:

become positive

Explanation:

6 0
3 years ago
In a standard tensile test a steel rod of 22-mm diameter is subjected to a tension force of 75kN. Knowing that v = 0.30 and E =
VladimirAG [237]

Answer:

(a) Elongation of rod = 0.19732 mm

(b) Change in diameter = 0.00651 mm

Explanation:

Circular area at end of steel rod = pi * diameter^2 / 4

Area = pi * (22 * 10^-^3)/4

Area = 3.801 * 10^(-4)    meter squared

Stress = force / area

Stress = 75000 / (3.801 * 10^-4)

Stress = 197316495 Pa     OR       0.197 GPa

Modulus of elasticity = stress / strain

200 = 0.19732 / Strain

Strain = 0.0009866     (longitudinal)

(a) Strain = change in length / initial length

0.0009866 = Elongation of rod / 200

Elongation of rod = 0.19732 mm

(b) Poisson ratio = lateral strain / longitudinal strain

0.3 = lateral strain / 0.0009866

Lateral strain = 0.000296

Lateral strain = Change in diameter / original diameter

0.000296 = Change in diameter / 22

Change in diameter = 0.00651 mm

4 0
3 years ago
Read 2 more answers
Because weight is a measurement of the amount of gravity pulling on an object, weight is considered a ______. Question 18 option
Andrews [41]

Answer: Force I believe.

6 0
2 years ago
A blue line with 5 orange tick marks then one red tick mark then 4 orange tick marks. The number zero is above the red tick mark
Natali5045456 [20]

The total displacement of the toy car at the given positions is 0.

The given parameters;

  • <em>First displacement of the car, = 5 cm left</em>
  • <em>Second displacement of the car, = 8 cm right</em>
  • <em>Third displacement of the car, = 3 cm to the left</em>

The total displacement of the car is calculated as follows;

  • <em>Let the </em><em>left </em><em>direction be "</em><em>negative </em><em>direction"</em>
  • <em>Let the </em><em>right </em><em>direction be "</em><em>positive </em><em>direction"</em>

\Delta x = - \ 5\ cm  \ + \ 8 \ cm \ - \ 3 \ cm \\\\\Delta x = 0

Thus, the total displacement of the toy car at the given positions is 0.

Learn more about displacement here: brainly.com/question/18158577

6 0
2 years ago
Read 2 more answers
Other questions:
  • The best example of heat transfer by convection is when
    14·1 answer
  • How do meteorites differ from meteors and meteoroids?
    12·2 answers
  • A ball collides with a vertical, unmovable wall. There is no friction between the wall and the ball (the only force acting on th
    6·1 answer
  • First, you will investigate purely vertical motion. The kinematics equation for vertical motion (ignoring air resistance) is giv
    5·1 answer
  • An amusement park ride consists of a rotating circular platform 8.03 m in diameter from which 10 kg seats are suspended at the e
    10·1 answer
  • In the diagram, q1= -2.60*10^-9 C and
    10·1 answer
  • (1) Expansion of concrete
    9·1 answer
  • The linear expansivity of metal P is twice that of another metal Q. When these materials are heated through the same temperature
    8·1 answer
  • According to the law of conservation of energy, which statement must be
    14·1 answer
  • Q3, A ball of mass 5.0 kg moving with a Velocity of 10.0 ms collides
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!