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
TiliK225 [7]
3 years ago
8

Por favor, necesito ayuda urgente 4. vectores perpendiculares de 25 y 40 unidades cada uno. Hallar gráfica y numericamente el ve

ctor resultante. 5 Dos vectores de 12 y 16 unidades respectivamente, forman entre si un ángulo de 40°. Halle el valor del vector resultante y grafique. 6.Un barco recorre 2400 Km desde un punto A hasta un punto B ubicado al oriente; Luego gira hacia el sur y recorre 1600 Km más hasta llegar a un punto C. Trace la gráfica del recorrido efectuado por el barco. Halle el valor numérico del vector desplazamiento entre el punto A y el punto C.
Physics
1 answer:
Darina [25.2K]3 years ago
3 0

Answer:

4)  R = 47.17 units , 5)  R= 10,29 unidades, 6)   R= 2994,4 km ,    θ = -33,7

Explanation:

Este es un ejercicio de adición de vectores

4) como los vectores son perpendiculares.

Para encontrar la resultante podemos usar el teorema de pitoras

        R =  √ a² + b²

        R = √√ ( 25² + 40²)

        R =  47,17 unidades

5)  Este caso como el angulo es diferente de 90 debemos usar la relación de pitoras completa

        R² =  a² + b² + 2 a b cos θ

donde el angulo es entre los vectores a y b

        R² = 12² + 16² – 2 12 16 cos 40

        R²= 400 – 294,16

       R= 10,29 unidades

6) En este caso los dos desplazamientos son perpendiculares, por lo cual Usamos el teorema de Pitágoras

          R = √ (2400² + 1600²)

          R= 2994,4 km

para el angulo de este desplazamiento usamos trigonometría

           tan θ = y/x

           θ = tan⁻¹ y/x

           θ = tan⁻¹ 1600/(-2400)

           θ = -33,7  

TRASLATE

This is a vector addition exercise

4) as the vectors are perpendicular.

To find the result we can use the Poreor theorem

        R = √ a² + b²

        R = √ (25² + 40²)

        R = 47.17 units

5) This case, as the angle is different from 90, we must use the complete ratio of the pitoras

        R² = a² + b² + 2 a b cos θ

where the angle is between vectors a and b

        R² = 12² + 16² - 2 12 16 cos 40

         R² = 400 - 294.16

       R = 10.29 units

6) In this case the two displacements are perpendicular, which is why we use the Pythagorean theorem

          R = √ (2400² + 1600²)

          R = 2,994.4 km

for the angle of this displacement we use trigonometry

           tan θ = y / x

           θ = tan⁻¹ y / x

           θ = tan⁻¹ 1600 / (- 2400)

           θ = -33.7

You might be interested in
What does the measurement 6.5 V represent?
WITCHER [35]
I'm not sure.
Where did you see it ?

If you saw it on a voltmeter, then it stands for "6.5 volts".
It tells you that the 'potential difference' or 'electromotive force'
between the two points connected to the meter is 6.5 volts.

-- If a 1-ohm resistor were connected between those two points,
then 6.5 coulombs of charge would move through the resistor every
second.  We would say that the "current" through the resistor is
6.5 Amperes, or "six'na half amps".

-- Each coulomb of charge (6.25 x 10¹⁸ electrons) that moves from
one of those points to the other one either gains or loses 6.5 joules
of energy, depending on which direction it moves.

-- So the resistor would need to shed heat somehow, at the rate of
6.5 watts (6.5 joules per second).  If it couldn't do that, then it would
go through an interesting series of changes.  It would get warm, then
get hot, then glow cherry red, then glow bright red, then glow orange,
then glow bright yellow, then make a sound like a "POP".  Then it would
break in the middle, and a little wisp of smoke would come out of it.
The two halves of the resistor would sink, sag from their wires, and
the current between the two points would stop. 

We would say that the resistor had "fused", "failed", "melted", "burned out",
or "bought the farm" ... all because it couldn't get rid of heat fast enough. 
5 0
3 years ago
The main source of this energy is <br> .
USPshnik [31]

Answer:motion

Explanation:

kinetic energy of an object that it possess due to its motion.

5 0
2 years ago
Read 2 more answers
How does temperature affect water potential?
Bond [772]
<span>Water will diffuse down gradients of water potential, just as heat will flow down gradients of temperature and rocks will roll down gradients of gravitational potential</span>
7 0
3 years ago
Which of the following is the most effective relaxation technique?
nevsk [136]

Answer:

A

Explanation:

It varies from person to person.

3 0
3 years ago
Read 2 more answers
Read the sentence.
Aleksandr [31]

Answer:

assembled

Explanation: because it was last weekend it was in the past so the past tense of assembled must be used

5 0
3 years ago
Read 2 more answers
Other questions:
  • A system releases 20 J of heat into its surroundings while the surroundings
    5·1 answer
  • What is reflection of light
    7·2 answers
  • Name two things that are important to remember when handling electric equipment
    14·2 answers
  • What is newtons first,second, and third law?
    8·1 answer
  • _____ analyzes the interaction of low-frequency sound waves with tissues to create moving images of internal organs.
    14·1 answer
  • The answer pleaseeeeeee
    9·1 answer
  • Whwhich pf the fallowing equations can be used to directly calculate an objects impulse
    10·2 answers
  • If 2,575J of heat is added to a 250g piece of silver, the change in temperature of the silver will be 43.6 °C? What is the speci
    8·2 answers
  • A 1250-kg car moves at 20.0 m/s. How much work must be done on the car to increase its speed to 30.0 m/s.
    11·1 answer
  • When two trains, going in opposite directions, are passing on tracks that are laid out close together, the train cars can often
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!