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
azamat
3 years ago
11

Which equation describes the sum of the vectors plotted below?

Physics
2 answers:
andrew-mc [135]3 years ago
6 0

It's the third one in the picture ...

r = 3x - 2y

Crazy boy [7]3 years ago
5 0

Explanation:

From the attached figure, OAB forms a triangle having,

a = (2,1)

b = (3,-2)

Vector, OA = 2x + y

Vector, AB = x - 3 y

The resultant can be calculated using triangular law of vector addition as :

r=OA+AB

r=2x+y+(x-3y)

r=3x-2y

So, the sum of the vectors plotted below is 3x-2y. Hence, the correct option is (c).

You might be interested in
Beth moves a 15 N book 20 meters in 10 seconds. How much power was produced?
Mice21 [21]

Answer:

30 Watts

Explanation:

 Power = Work/Time

Work = Force*Distance

Power = Force * Distance / Time

Power = 15 N * 20 meters / 10 sec

Power = 30 Watts

5 0
3 years ago
The lowest possible frequency that can form in a musical instrument is called the _____. A fundamental frequency B the harmonic
NeX [460]
Perhaps D. if it is the lowebsr possible frequency then it would most likely be the last. I may not be 100 percent right, but that's just an educated guess.
5 0
3 years ago
car 1 is traveling south at 18 m/s and has a full load, giving it a total mass of 14,650 kg. Car 2 is traveling north at 11 m/s
kvasek [131]

Answer:

v_{4}= 80.92[m/s] (Heading south)

Explanation:

In order to calculate this problem, we must use the linear moment conservation principle, which tells us that the linear moment is conserved before and after the collision. In this way, we can propose an equation for the solution of the unknown.

ΣPbefore = ΣPafter

where:

P = linear momentum [kg*m/s]

Let's take the southward movement as negative and the northward movement as positive.

-(m_{1}*v_{1})+(m_{2}*v_{2})=-(m_{1}*v_{3})+(m_{2}*v_{4})

where:

m₁ = mass of car 1 = 14650 [kg]

v₁ = velocity of car 1 = 18 [m/s]

m₂ = mass of car 2 = 3825 [kg]

v₂ = velocity of car 2 = 11 [m/s]

v₃ = velocity of car 1 after the collison = 6 [m/s]

v₄ = velocity of car 2 after the collision [m/s]

-(14650*18)+(3825*11)=(14650*6)-(3825*v_{4})\\v_{4}=80.92[m/s]

4 0
2 years ago
A dog pulls on a pillow with a force of 2.3 N
nlexa [21]
Fx = Fcos21.9
Fx = 2.3N * cos21.9
Fx = 2.13N
7 0
3 years ago
How fast does lightning move?
dangina [55]

Answer:

about 186,000 miles per second

Explanation:

so your closest bet is probably 175 miles per second

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which substance is a combination of different atoms?
    8·1 answer
  • A wave has a wavelength of 7 mm and a frequency of 19 hertz. What is its speed?
    13·1 answer
  • What mass of silver (in grams) is solidified when 749 joules of heat are released by a sample of molten silver at its freezing p
    7·2 answers
  • A 385-g tile hangs from one end of a string that goes over a pulley with a moment of inertia of and a radius of 15.0 cm. A mass
    5·2 answers
  • A resistor, capacitor, and switch are all connected in series to an ideal battery of constant terminal voltage. Initially, the s
    6·1 answer
  • radio waves travel at the speed of light, 3 x 10^8 m/s. the wavelength of a radio wave record is 200,000,000 hz is?
    6·1 answer
  • What is the magnitude of electrical force of attraction between an copper nucleus (29 protons) and its innermost electron if the
    7·1 answer
  • On a hot summer day, you need to leave your house for 30 minutes. To use the least amount of energy, should you turn off your ai
    8·1 answer
  • Can anyone help me please​
    7·1 answer
  • 3. What is the density of a substance that weighs 39.1 g and is 56.0 mL?<br> (Density = g/mL)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!