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DIA [1.3K]
4 years ago
9

How does chronic stress physically change the brain?

Physics
1 answer:
DIA [1.3K]4 years ago
6 0

Chronic stress can physically change the brain by:

- Chronic stress has the ability to shrink the brain. It has the ability to harm one’s person learning capacity by being able to reduce the volume of the gray matter that is a major component in a person’s brain. It is also able to harm the memory of the person.

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Plz help due in a hour
Lynna [10]

Answer: 1.8409\ kN

Explanation:

Given

Mass of student m=70\ kg

Mass of Jupiter M=1.901\times 10^{27}\ kg

Distance between them is r=6.98\times 10^7\ m

Gravitational force is given by

\Rightarrow F=\dfrac{GmM}{r^2}\\\\\Rightarrow F=\dfrac{6.74\times 10^{-11}\times 70\times 1.901\times 10^{27}}{(6.98\times 10^7)^2}

\Rightarrow F=18.409\times 10^{-11+27-14}=1.8409\ kN

If the distance is cut to half, then the force will be four times the initial force

7 0
3 years ago
Una caja con medicina es lanzada desde un avión localizado a una distancia vertical de 340 m por encima de un río. Si el avión l
a_sh-v [17]

Answer:

La distancia horizontal que recorrerá la caja con medicina antes de caer al río es 583.1 metros.

Explanation:

Una caja con medicina es lanzada desde un avión localizado a una distancia vertical de 340 m por encima de un río.  Este movimiento posee una composición en dos dimensiones: uno horizontal sin aceleración, y el otro vertical con aceleración constante debido a la gravedad.  Por lo que se trata de un movimiento rectilíneo uniforme (MRU) en su trayectoria horizontal o eje horizontal (es decir, su velocidad es constante) y un movimiento uniformemente variado (MRUV) en su trayectoria vertical o en el eje vertical (es decir, su aceleración es constante).

En este caso, son conocidos los datos, considerando el sistema de referencia de la imagen:

  • Vy = 0 m/s (trayectoria vertical)
  • Vx = 70m/s (velocidad horizontal)  
  • hi = 340 m (altura inicial)
  • g = -9,8 m/s²
  • hf = 0 m (altura final. Cuando la caja de medicina cae al río, su altura será 0 m)

En el caso del MRUV, la posición puede calcularse mediante la expresión:

Posición final= Posición inicial + Velocidad inicial*t + \frac{1}{2}*a*t²

donde a es la aceleración y t el tiempo transcurrido.

En este caso, reemplazando los datos conocidos, teniendo en cuenta que el MRUV sucede en la trayectoria vertical y que la aceleración es el valor de la gravedad:

0 m= 340 m + 0 m/s*t + \frac{1}{2}* (-9.8 m/s²)* t²

Resolviendo:

-340 m= \frac{1}{2}* (-9.8 m/s²)* t²

\frac{-340 m}{\frac{1}{2} *(9.8\frac{m}{s^{2} } )} =t^{2}

69.39 s²= t²

t= √69.39 s²

t= 8.33 s

La posición en MRU se obtiene mediante:

Posición final= Posición inicial + velocidad* tiempo

Con los datos conocidos y el tiempo calculado previamente, es posible calcular la distancia horizontal que recorrerá la caja con medicina antes de caer al río, siendo la posición inicial en x igual a cero:

Posición final= 0 m + 70m/s* 8.33 s

Posición final= 583.1 m

<u><em>La distancia horizontal que recorrerá la caja con medicina antes de caer al río es 583.1 metros.</em></u>

4 0
3 years ago
Someone help me plz
vagabundo [1.1K]

Answer:

Aerobic exercise includes?

(C) All activities that make you tired and short of breathe.

2. Which choice is an intense exercise that involve short burst of activity in which the muscles worked so hard that they produce energy without using energy?

(B) anaerobic exercise

Explanation:

4 0
3 years ago
I have to write an essay about Quantum Mechanics. I need to know everything about it. Please Help!
Studentka2010 [4]

ananı var ya ananı

kodumun abd lisi aptal cajhil özürlü

6 0
3 years ago
Read 2 more answers
Giving brain list
Montano1993 [528]

Answer:

1= d

2= c

3= b

4= a

5= c

6= b

7= d

4 0
3 years ago
Read 2 more answers
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