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2 years ago

The pituitary gland releases chemicals knows as:

1 answer:

7 0

C. Endorhins

Endorphins can be found in the pituitary gland, in other parts of the brain, or distributed throughout the nervous system. Stress and pain are the two most common factors leading to the release of endorphins.

Hope this helps!!!

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As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road i

Kitty [74]

Answer:

B. Kinetic friction

Explanation:

This is definitely the correct answer because kinetic friction acts when an object is in motion and it allows the object to move without slipping, etc

ALSO, PLEASE DO MARK ME AS BRAINLIEST UWU 

Bonne journée ;) 

6 0

2 years ago

Read 2 more answers

If you swing a bucket of water fast enough in a vertical circle, at the highest point the water does not spill out. This happens

amm1812

Answer:

True

Explanation:

If we swing a bucket of water fast enough in a vertical circle the water does not spill out even at the top-most position of the bucket. This happens because the centrifugal force acting away from the center in a circular motion neutralizes or overcomes the gravitational force on the water particles.

Centrifugal force is mathematically related as:

$F=m.r.\omega^2$

where:

m = mass of the revolving body

r = radius of revolution

$\omega=$ angular velocity in radians per second

This force F acts in radially outward direction.

3 0

3 years ago

Which type of relationship is formed when a megabat eats a fig and drops the

Alina [70]

The type of relationship formed when a megabat eats a fig and drops the seeds in a new location is COMENSALISM. It is an ecological interaction.

<h3>What is commensalism?</h3>

Commensalism is a type of ecological interaction in which one organism benefits (in this case, the tree) and the other organism neither benefits nor harm (the megabat).

Mutualism is a type of ecological association in which both organisms benefit from such interaction.

Conversely, parasitism is a type of ecological interaction in which one organism benefits and the other organism is harmed.

Learn more about commensalism here:

brainly.com/question/16712254

3 0

2 years ago

Materials expand when heated. Consider a metal rod of length L0 at temperature T0. If the temperature is changed by an amount ΔT

irinina [24]

Answer:

$\Rightarrow L=70 .03472 cm$

Explanation:

For convenience, let's represent the thermal expansion coefficient by $\alpha$ , i.e. $????=\alpha$ .

Given that, for steel $\alpha =1.24\times 10^{-5}$ ° $C^{-1}$ ,

initial length, $L_0=70 cm$ , initial temperature, $T_0=70$ ° $C$ , and the final temperature, $T=110$ ° $C$ .

Let the length of the rod at $T=110$ ° $C$ be $L$ .

Now, change in length, $\Delta L=\alpha L_0 \Delta T$

$\Rightarrow \Delta L=\alpha L_0 (T-T_0)$

$\Rightarrow L-L_0=1.24\times 10^{-5}\times 70 (110-70)$

$\Rightarrow L-70=1.24\times 10^{-5}\times 70 \times 40$

$\Rightarrow L=70 + 0.03472 cm$

$\Rightarrow L=70 .03472 cm$

Hence, the length of the rod at $T=110$ ° $C$ be $70.03472 cm$ .

7 0

3 years ago

A vehicle is moving at a speed of 20m/s suddenly the driver sees a fallen tree on the road, he instantly applies the brakes that

NeTakaya

Answer:

b) Distance covered before stopping.

Explanation:

If you want to find the distance d required to come to a stop starting at some initial speed v, with braking acceleration a, use the kinematic relation

vf2 - vi2 = 2ad

vi = initial speed at the moment braking begins = v

vf = final speed = 0 (comes to a full stop)

-v2 = 2ad

d = -v2/(2a)

6 0

2 years ago