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hram777 [196]
4 years ago
7

Which equation represents the Pythagorean theorem, which can be used to find the magnitude of resultant vectors? R = A + B R = A

x B R2 = A2 x B2 R2 = A2 + B2
Chemistry
2 answers:
Diano4ka-milaya [45]4 years ago
7 0
What is the complete the square 4p^2-12p+13
IRISSAK [1]4 years ago
6 0
R2=A2+B2 represents the Pythagoras theorem.
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Fatty acid with only single covalent bonds is said to be
ohaa [14]
These are known to be saturated.  
The definition of a saturated fatty acid is that the carbon chain coming off of the acid group contains only single bonds.  An unsaturated fatty acid contains at least one double bond in the carbon chain coming off of the acid group.  Saturated fats are usually fats (solid at room temperature) while unsaturated fats can be oils (liquid at room temperature) this is because the single bonds in the saturated fats give the molecule a shape that can stack on another saturated fat molecule more easily which makes the melting points higher.  The double bonds (usually referring to cis double bonds since trans double bonds are in trans fats) in unsaturated fats give the molecule a shape that cannot stack on another unsaturated fat molecule easily which makes the melting point lower.

I hope this helps.  Please let me know if anything is unclear or if you want further explanation.
4 0
4 years ago
A positron is emitted when ____________. *
Darina [25.2K]
The correct answer is:
a positron is emitted when proton converts to a neutron.

The reaction can be described as following:
₁¹p (proton) → ₀¹n (neutron) + ₁°e (positron or ₁⁰β)
Positron is an antiparticle of a β particle (₋₁°β), which means it has an oposite charge to it, but same mass.

7 0
3 years ago
1. When a mechanical wave, such as sound, reflects off a surface, what can the
oksano4ka [1.4K]
That the surface is very shiny
4 0
3 years ago
This graph shows two curves pertaining to a hydrogen s orbital.
fgiga [73]

Answer 1) : According to the complete question attached in the answer,

The radial wave function  which is denoted by R_{nl}(r) shown with orange color crosses through zero point. Also, At the the radial nodes, which are spherical shells to some radial distance away from the nucleus there no electron are found.

Also, the radial probability distribution curve denoted as R^{2}_{nl}(r) shown in  blue  color is observed to touch zero, and shows the place of radial node.

Therefore, the total number of nodes will include both the kinds  which has radial and angular nodes which will be represented by <em>'n'</em>.

It is observed that for any atomic orbital, the total number of nodes will be n-1  .


Considering the s orbital of the hydrogen, which has zero angular momentum  (l); (l=0), as it has zero angular nodes.  

Hence, there will be only radial nodes, which is

(n−1  =  total number of radial nodes in s orbitals)

According to the image, there are 4  radial nodes shown, so n  =  5  (as n-1 = 4; therefore, n = 5)

This represents the 5s orbital.


Answer 2) The radial nodes are observed in I'm seeing radial nodes at  

1.9a_{0},  6.4a_{0},13.9a_{0} and  27.0a_{0}.

where  a_{0} represents the  hydorgen bohr atomic radius =  0.0529177 nm


Explanation : It is quite easy to observe the given graph and find out the approximate values of the radial nodes, it does not requires any equation to be solved. Equation can be used to find the radial nodes if it was supplied along with the question. Although by mere speculation one can find out the answer.

3 0
3 years ago
Read 2 more answers
You have learned how to take steps that are exactly 1m long. You take 12 steps north, then 15 steps north, 35 steps south, 11 st
ivanzaharov [21]

Answer:

you have walked 69 steps but your current location is -13

8 0
3 years ago
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