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FinnZ [79.3K]
3 years ago
8

NEED ANSWER ASAP PLEASE!!!

Physics
2 answers:
o-na [289]3 years ago
6 0
<span>silicon (Si) had four valence electrons :)
</span>
iragen [17]3 years ago
3 0
The answer is Silicon. If you ever need a quick way to find out how many valence electrons an element has, look for the element's family. Of course, disregard the transition metals. They are playing their own game.
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When you push on an object such as a wrench, a steel pry bar, or even the outer edge of a door, you produce a torque equal to th
Korvikt [17]
<span>Since youc oncetrate all your force directly towards the moment arm it means that you push  it at an angle  of your force is directed to the left or the right and I bet that it must be 90</span> degrees to the bar. Obviuosly, if you are about to push it you will do it  straight up but not in a zig zag way. In other words, it should be perpendicular to the arm because the<span> torque can be produced only if force is applied at a constant index (90).
Hope that helps! Regards.</span>
5 0
3 years ago
An automobile traveling 50km/hr. It decelerates at 5 meter per second square. How long will it take to stop the car? How far wil
const2013 [10]
We know, a = v/t
Here, a = 5 m/s²
v = 50 km/h= 13.88 m/s

Substitute their values into the expression:
5 = 13.88 / t
t = 13.88/5
t = 2.78 sec

Now, we know, v = d/t
13.88 = d/2.78
d = 13.88 * 2.78
d = 38.53 meter

In short, Your Answers would be:
i) It will take 2.78 sec
ii) It will travel for 38.53 m after a brakes applied.

Hope this helps!
3 0
3 years ago
Question 10 of 10<br> Closure is the process of:
pshichka [43]

Answer:

Closure is the process of: Closing

Explanation:

Please visit my church's website at fbcinterlaken.org to learn more about God. Please subscribe to the You Tube channel because my church really needs the support right now. Thank you! And have a nice day! :) (I will take brainliest).

3 0
3 years ago
If the f-number of a camera lens is doubled, say from F4.0 to F8.0, that means the diameter of the lens aperture is
yan [13]

Answer:

The diameter is halved or reduced by a factor of 2

Explanation:

Because

f number = F/D

That is f number is inversely proportional to diameter so if it is doubled diameter is halved

8 0
3 years ago
Which two men developed the steam engine?
Lina20 [59]

Watt was one of them


4 0
4 years ago
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