Subduction occurs at which of the following tectonic plate boundaries?

A car travels along a straight road, heading east for 1 h, then traveling for 30 min on another road that leads northeast. If th

Bogdan [553]

Answer:

The car is 72.75 miles away from its starting position.

Explanation:

First, remember the relation:

distance = time*speed.

Also, the distance between two points (a, b) and (c, d) is:

D = √( (a - c)^2 + (b - d)^2)

For this problem, we can assume:

The North is equivalent to the y-axis, and the East is equivalent to the x-axis.

We also assume that the initial position of the car is (0mi, 0mi)

Now the car moves to the East at a speed of 52mi/h for one hour, then the new position of the car is:

(0mi, 0mi) + (52mi/h*1h, 0mi) = (52mi, 0mi)

Now the car travels 30 mins (or 0.5 hours) to the northeast at a speed of 52mi/h.

We can assume that it moves at an exact angle of 45° from East to North, then the components of the speed can be written as:

Sx = speed in the x-axis = 52mi/h*cos(45°) = 36.77 mi/h

Sy = speed in the y-axis = 52mi/h*sin(45°) = 36.77 mi/h

Then the new position of the car is:

(52mi, 0mi) + (36.77 mi/h*0.5h, 36.77 mi/h*0.5h) = (70.385 mi, 18.385 mi)

Now we know the final position of the car.

The distance between the final position (70.385 mi, 18.385 mi) and the initial position (0mi, 0mi) is:

D = √( (70.385 mi - 0mi)^2 + (18.385 mi - 0mi)^2) = 72.75 mi

The car is 72.75 miles away from its starting position.

7 0

3 years ago

¿Alguien que me pueda dar las respuestas a las siguientes preguntas?

taurus [48]

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6 0

4 years ago

A lightbulb marked "75 W [at] 120 V" is screwed into a socket at one end of a long extension cord, in which each of the two cond

Vedmedyk [2.9K]

Answer:

Part c)

$P = 73.8 Watt$

Explanation:

Light bulb is marked as 75 W and 120 Volts

so it means that when we apply 120 volts across the bulb then it will consume the total power of 75 W

now when we connected the bulb with the help of conducting wires with some resistance across them then few of its voltage will fall across the wires

due to which the voltage across bulb is less than 120 Volts

So the power given by the bulb is less than 75 W

Part c)

Resistance of the bulb is given as

$R = \frac{V^2}{P}$

$R = \frac{120^2}{75}$

$R = 192 ohm$

now total resistance of the circuit

$R_{net} = 192 + 0.8 + 0.8$

now current in the circuit

$i = \frac{120}{193.6}$

$i = 0.62 A$

so actual power delivered to the bulb is given as

$P = i^2 R$

$P = 0.62^2 \times 192$

$P = 73.8 Watt$

5 0

3 years ago

Escriba un texto sobre el significado que ha tenido para la humanidad la utilización de la electricidad

ratelena [41]

Explanation:

La electricidad fue uno de los mayores inventos tecnológicos y científicos del mundo que permitió una gran evolución de la sociedad.

Es a través de la electricidad que podemos realizar tareas que parecen tan habituales en la actualidad, como usar luz eléctrica, usar internet, conservar alimentos, tomar baños calientes, y otras tareas que forman parte de la rutina diaria de miles de personas alrededor del mundo. mundo.

Por tanto, es importante observar en un contexto general cómo la electricidad ha traído beneficios a la humanidad, como la conservación de los alimentos por ejemplo, que ha facilitado la vida cotidiana.

En el entorno empresarial, la electricidad posibilitó la creación de máquinas, la automatización del trabajo, lo que facilita las funciones de los empleados, aumenta la seguridad de la empresa, permite el crecimiento empresarial y la aparición de muchos productos y servicios que existen en la economía actual.

En medicina ayudó en el tratamiento de enfermedades, en la creación de medicamentos, etc.

En la sociedad, la electricidad hace posible el saneamiento, permite una mejor calidad de vida para las personas, un mayor intercambio de información y varios otros desarrollos que tienen un impacto directo en la vida de cualquier persona.

7 0

3 years ago

Identify each statement that describes a benefit of the scientific method. (Select all choices that apply)

Alecsey [184]

The statements that describe a benefit of the scientific method are as follows:

It gives scientists a standardized way to approach a problem.
It reduces bias and judgment from personal experiences.
It gives scientists a common vocabulary for sharing information.

Thus, the correct options are B, C, and D.

<h3>What is the Scientific method?</h3>

The scientific method may be defined as a strategy of research in which a problem is recognized, relevant data is collected, a conjecture is composed of this data, and the assumption is empirically tested to determine the outcome of particular research.

The scientific method never explains or provides an answer to any question immediately because it consists of a scripted format with certain parameters.

The scientific method uses the identical vocabulary for sharing information with one another in particular terminology.

Therefore, it is well described above.

To learn more about the Scientific method, refer to the link:

brainly.com/question/17216882

#SPJ1

4 0

2 years ago