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
belka [17]
3 years ago
8

Alberto y David roban un coche y huyen a 90 km/h. A los 10 minutos, la policía recibe

Physics
1 answer:
Alborosie3 years ago
8 0

Answer:

Explanation:

Given that,

Albert and David steal a car and run at

Vt = 90km/hr

Vt = 90×1000/3600 = 25m/s

After 10minutes

t = 10×60 = 600seconds

The police are inform and they started chasing at

Vp = 120km/hr

Vp = 120 × 1000/3600 = 33.33m/s

A. The thief have been running for 1200seconds before the police start

So, the distance between the thief and the police at the start can be determine using

Speed = distance / time taken

So, distance = speed × time taken

d = Vt × t

d = 25 × 600

d = 15,000m

d = 15 km

So, the thief are 15km apart from the thief after 10 minutes

B. Let assume we want to know when police will catch up with the thief.

Now,

The thief is traveling at 25m/s

And police = 33.33m/s

The distance apart is 15,000m

So, let assume the police will catch the thief at distance 'do, then the thief had already travelled 15,000, so the thief will have d - 15000. Note that they will spend the same time in this reference.

So, let find the time the police will traveled 'd'

Speed = distance / time

distance = speed of police × time

d = Vp × t

d = 33.33t...........equation 1

Also, the thief

Distance = speed of thief × time

15,000-d = 25 × t.........equation 2

Substitute equation 1 into 2

15,000 - 33.33t = 25t

15,000 = 25t + 33.33t

15,000 = 58.33t

t = 257.14 seconds

So, it will take the police a total of 600second before they were told and the time 257.14 second when they caught the thief.

How long will it have been after the robbery?

Total time after robbery before the car was recovered is

t = 600 + 257.14

t = 857.14 seconds

In Spanish

Dado que,

Albert y David roban un auto y corren a

Vt = 90 km / h

Vt = 90 × 1000/3600 = 25 m / s

Después de 10 minutos

t = 10 × 60 = 600 segundos

La policía está informada y comenzaron a perseguir a

Vp = 120 km / h

Vp = 120 × 1000/3600 = 33.33 m / s

A. El ladrón ha estado corriendo durante 1200 segundos antes de que comience la policía.

Entonces, la distancia entre el ladrón y la policía al inicio se puede determinar usando

Velocidad = distancia / tiempo necesario

Entonces, distancia = velocidad × tiempo tomado

d = Vt × t

d = 25 × 600

d = 15,000m

d = 15 km

Entonces, el ladrón está a 15 km del ladrón después de 10 minutos

B. Supongamos que queremos saber cuándo la policía alcanzará al ladrón.

Ahora,

El ladrón viaja a 25 m / s.

Y policía = 33.33m / s

La distancia es de 15,000m.

Entonces, supongamos que la policía atrapará al ladrón a distancia 'do, entonces el ladrón ya había viajado 15,000, por lo que el ladrón tendrá d - 15000. Tenga en cuenta que pasarán el mismo tiempo en esta referencia.

Entonces, busquemos el tiempo en que la policía viajará 'd'

Velocidad = distancia / tiempo

distancia = velocidad de la policía × tiempo

d = Vp × t

d = 33.33t ........... ecuación 1

Además, el ladrón

Distancia = velocidad del ladrón × tiempo

15,000-d = 25 × t ......... ecuación 2

Sustituye la ecuación 1 en 2

15,000 - 33.33t = 25t

15,000 = 25t + 33.33t

15,000 = 58.33t

t = 257.14 segundos

Entonces, le tomará a la policía un total de 600 segundos antes de que se les diga y el tiempo 257.14 segundos cuando atraparon al ladrón.

¿Cuánto tiempo habrá pasado después del robo?

El tiempo total después del robo antes de recuperar el automóvil es

t = 600 + 257,14

t = 857.14 s

You might be interested in
On a farm, you are pushing on a stubborn pig with a constant horizontal force with magnitude 30.0 n and direction 37.0° counterc
sashaice [31]

<span>Since the force is applied at an angle from the horizontal, we will use the horizontal component of this force in calculating for the displacements.
From derivation, the Fx is:</span>

Fx = F cos φ

Where:

Fx = is the horizontal component of the force

F = total force

φ = angle in radian = 37 * pi / 180 = 0.645 rad

Calculating: Fx = 30.0 N * cos(0.645)

Fx = 23.97 N = 24 N

Calculating for Work: W = Fx * d

A. W = 24 N * 15 m = 360 N

B. W = 24 N * 16 m = 384 N

C. W = 24 N * 12 m = 288 N

D. W = 24 N * 14 m = 336 N 

8 0
3 years ago
In a certain time period a coil of wire is rotated from one orientation to another with respect to a uniform 0.38-T magnetic fie
juin [17]
<h2>The emf produced is 7.2 V</h2>

Explanation:

When coil is placed in the magnetic field , the flux attached with it can be found by the relation . Flux Ф = the dot product of magnetic field and area of coil .

Thus Ф = B A cosθ

here B is magnetic field strength and A is the area of coil .

The angle θ is the angle between coil and field direction .

When coil rotates , the angle varies . By which the flux varies . The emf is produced in coil due to variation of flux . The relation for this is

The emf produced ξ = - \frac{d\phi}{dt} =  B A sinθ \frac{d\theta}{dt}

Now in the given problem

5 = 0.38 x A x \frac{d\theta}{dt}                            I

Now if the magnetic field is 0.55 T and all the other terms are same , the emf produced

ξ = 0.55 x A x \frac{d\theta}{dt}                              Ii

dividing II by I , we have

\frac{\xi}{5} = \frac{0.55}{0.38} = 1.45

or ξ = 7.2 V

6 0
3 years ago
How long did it take beagle to sail from Tahiti back to Falmouth, England?
Radda [10]

Answer:

On 2 October 1836, the Beagle entered the English port of Falmouth after a voyage which had lasted for four years, nine months and five days.

5 0
3 years ago
Why do empty rooms sound hollow
Fofino [41]

Answer:

Every empty room has echo, it's material does that. The object in the room take away that echo.

Explanation:

3 0
3 years ago
Read 2 more answers
After grocery shopping, Eric makes the trip home in 25 minutes. What is the magnitude of the difference in average velocity betw
zalisa [80]

Answer:

The two dogs sitting here are already poor and ignorant

5 0
3 years ago
Other questions:
  • How are Atomic number and mass number similar and difference?
    11·1 answer
  • Pick an activity you enjoy, such as running or riding a scooter, and describe how newton's laws apply to that activity.
    15·2 answers
  • The Moon orbits Earth in an average of p = 27.3 days at an average distance of a =384,000 kilometers. Using Newton’s version of
    13·1 answer
  • Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (nm), where 1nm=10−9m. What is the energy of a ph
    11·1 answer
  • Warmer weather caused Galetown to have more severe storms.
    10·1 answer
  • How does Newtons first law of motion relate to planetary motion
    15·1 answer
  • A student has designed a circuit with one battery, two light bulbs, and two switches, pictured to the left. She would like for e
    5·2 answers
  • A 2kg object is tied to the end of a cord and whirled in a horizontal circle of radius 2 m. If the body makes three complete rev
    14·1 answer
  • What are the ways of heat transfer?
    10·2 answers
  • When are car velocity is positive and acceleration is negative, what is happening to the cars motion
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!