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Vinil7 [7]
3 years ago
7

Why do my hair change colors?

Physics
1 answer:
kirza4 [7]3 years ago
8 0
Ask ya mother .. she birthed you so she’ll know .
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Predictions about the future based on the position of planets is an example of
tatyana61 [14]
Predictions about the future based on the position of planets is an example of astrology.
Hope this helps! :)
6 0
3 years ago
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Calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the level with
anastassius [24]

Answer:

2.11 m

Explanation:

<u>Given data</u>

h=6.626×10^{-34\\}(plank constant)

L=45.7 pm

n=n2-n1

n=5-1

n=4

<em>where,</em>

<em>n2=5</em>

<em>n1=1</em>

<u>To find:</u>

E=?

λ=? (Wavelength)

<u>solution</u>

The energy stored in an electron at a specified level is given by;

E=h^{2}×n^{2}÷8ml^{2}..........(1)

<em>m=mass of electron(9.1×</em>10^{-31})

<em>l=length of box</em>

<u>To find E</u>

putting the value of given data in eq(1)

E=9.41×10^{-16}

<u>To find λ</u>

λ=hc/E............................(2)

c=3×10^{8}(speed of light)

putting the value in eq 2 to find wavelength

λ=2.11 m

<u></u>

<u>Note:</u>

There is a chance in calculation error. but the method is correct to solve the problem.

7 0
3 years ago
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“Anchor” points on a temperature scale are known as fiducial points.<br><br> a)True<br> b)False
Svetlanka [38]
Yes. It r<span>efers to any of the temperatures assigned to a number of reproducible equilibrium states on the International Practical Temperature Scale</span><span>

In short, Your Answer would be "True"

Hope this helps!</span>
8 0
3 years ago
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Help with questions please
solmaris [256]

Q9. R₁ only.

Since the upper branch is cut at x, the circuit in this branch is not closed. No current will flow through this branch. In this case, the circuit becomes a series circuit and current only flows through R₁.

Q10. 3 pathways.

3 different resistors are connected in parallel, which means there will be three branches of parallel circuit, each with one resistor. Current can flow through 3 different branches, until the parallel circuits combine together again.

4 0
3 years ago
Can a moving car be a frame of reference?
GalinKa [24]

Answer:can a moving car be a frame of reference?

Therefore, a frame of reference can be in motion, and that motion can be of several different types. Anyone who has ever taken a ride in a car has been in a moving frame of reference and has experienced the several different types of motion through which this frame can move.

Explanation:

6 0
3 years ago
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