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3 years ago

The activation of the sympathetic division would prepare people for

1 answer:

7 0

The answer is fight or flight response.
The activation of the sympathetic division would prepare people for "fight or flight" response.
The other names that are used for the fight or flight response are hyperarousal, response and the acute stress response.
There are two divisions in autonomic nervous system, one of the division is sympathetic division and the other one is parasympathetic division.

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Which statement is true about alkali metals? A. Some of them explode when exposed to water. B. They are in group 18 of the perio

WINSTONCH [101]

The Answer To This Is A , The Most Reactive Of The Alkali Explode Due To Reactions To Water

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3 years ago

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A car with speed v and an identical car with speed 2v both travel the same circular section of an unbanked road. If the friction

yawa3891 [41]

Answer:

$F'=\dfrac{F}{4}$

Explanation:

Let m is the mass of both cars. The first car is moving with speed v and the other car is moving with speed 2v. The only force acting on both cars is the centripetal force.

For faster car on the road,

$F=\dfrac{mv^2}{r}$

v = 2v

$F=\dfrac{m(2v)^2}{r}$

$F=4\dfrac{m(v)^2}{r}$ ..........(1)

For the slower car on the road,

$F'=\dfrac{mv^2}{r}$ ............(2)

Equation (1) becomes,

$F=4F'$

$F'=\dfrac{F}{4}$

So, the frictional force required to keep the slower car on the road without skidding is one fourth of the faster car.

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4 years ago

In this activity, you’ll read two articles about plastics that analyze the material from two different points of view. You’ll al

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Answer:

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3 years ago

The force per meter between the two wires of a jumper cable being used to start a stalled car is 0.244 N/m. (a) What is the curr

MakcuM [25]

Answer: current I is 144amp(A)

Explanation: The force per lenght F/L, current l, and separation distance r are related by the formula

F/L = permeability of space* I²/2*pi*r

Permeability of free space is 1.257*EXP {-6} Henry/meter

F/L is 0.244 N/m, pi is 3.142,

r is 1.7cm which is equal to 0.017meter.

I is what we are looking for.

Now we have after substitution,

0.244

= 1.257*EXP {-6} * I²/(2*3.142*0.017)

After cross multiplying and making I² subject of formula we have,

0.0261/(1.257*EXP {-6}) = I²

I = √{20736.7} =144ampere(A)

That means in each of the jumper wire there is 144amp(A)

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3 years ago

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Iteru [2.4K]

Answer:

Explanation:

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3 years ago