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makkiz [27]
2 years ago
8

What is the composition of the most abundant mineral compounds on earth?

Biology
2 answers:
ad-work [718]2 years ago
5 0
D. Silicon, Oxygen, and one or more metals
Gekata [30.6K]2 years ago
4 0

D, your answer is said...

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What happens at the synapse between two neurons?
kenny6666 [7]

A synapse is some type of structure located on a neuron, that makes the exange of information between neurons possible.


The two main part of the structure are the neurotransmitter transporter and the receptors, which send and recieve information respectively and are found in every nervous cell.


I have pasted an image below, so you can see how a synapse looks.



Hope it helped,


Happy homework/ study/ exam!

8 0
3 years ago
Which of the following explains why it took so long for the public to accept the negative health effects of smoking?
Bogdan [553]

Answer:

I believe the answer is B  

Explanation:

I hope this helps

8 0
3 years ago
How many seconds ago on the "cosmic calendar" did the two halves of the world find each other?
alexdok [17]
The big ban occurred at the beginning  of the year the first second[437 . 5 years per second] of January , the solar system and life at September. 
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3 years ago
My boyfriend asked me to help him with his homework and i dont get it either so please help if you can
Crank

A molecule.

Have a nice day, hope this helps.

Cheers~

5 0
2 years ago
Read 2 more answers
If a car is traveling 100 km/h west and comes to a stop in 3 min, what is the car's acceleration?
Nataly [62]

Answer:

0.15 m/s² east

Explanation:

We can use following kinematic equation for Uniformly-Accelerated Motion to solve this problem:

<h3>v = v₀ + a × t</h3>

Where <em>v</em> is the final velocity, <em>v₀ </em>is the initial velocity, <em>a</em> is the acceleration and <em>t </em>is the time interval.

<u>The data of the problem is:</u>

  • v₀ = - 100km/h (remember to have a frame of reference, I decided traveling west will be towards the negative values and traveling east will be positive).
  • v = 0 km/h (the car comes to a full stop)
  • t = 3 min

<u>Replacing the data in the formula</u>:

0 km/h = -100 km/h + a × 3 min

It's very important to use the same units when solving problems. I will convert kilometer to meters and hour or minutes to seconds, because the answer choices are given in m/s².

  • 0 km/h = 0 m/s
  • \frac{100 \ km}{\ \ h} * \frac{1000\ m}{1\ km} * \frac{1\ \ h}{3600\ s} = \frac{27.78\ m}{\ \ \ \ s}
  • 3 min * \frac{60\ s}{1\ m} = 180 s

Then:

0 m/s = -27.78 \ m/s + a * 180 s\\+27.78 m/s = a * 180 s\\

\frac{+27.78 \ m/s}{180\ s} = a\\\\+ 0.15 m/s^2 = a

And considering our frame of reference, a positive sign indicates that the acceleration is east-bound.

3 0
3 years ago
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