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mart [117]
3 years ago
10

The first four steps in the formation of the sun are listed below.

Physics
2 answers:
kati45 [8]3 years ago
7 0
<span>The next logical step in the formation of the sun would be choice B. Nuclear fusion of gases takes place in the center of the nebula. </span>
Airida [17]3 years ago
6 0
(B)Option b is your answer..........
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A thin uniform rod of mass M and length L is bent at its center so that the two segments are now perpendicular to each other. Fi
Tatiana [17]

Answer:

(a) I_A=1/12ML²

(b) I_B=1/3ML²

Explanation:

We know that the moment of inertia of a rod of mass M and lenght L about its center is 1/12ML².

(a) If the rod is bent exactly at its center, the distance from every point of the rod to the axis doesn't change. Since the moment of inertia depends on the distance of every mass to this axis, the moment of inertia remains the same. In other words, I_A=1/12ML².

(b) The two ends and the point where the two segments meet form an isorrectangle triangle. So the distance between the ends d can be calculated using the Pythagorean Theorem:

d=\sqrt{(\frac{1}{2}L) ^{2}+(\frac{1}{2}L) ^{2} } =\sqrt{\frac{1}{2}L^{2} } =\frac{1}{\sqrt{2} } L=\frac{\sqrt{2} }{2} L

Next, the point where the two segments meet, the midpoint of the line connecting the two ends of the rod, and an end of the rod form another rectangle triangle, so we can calculate the distance between the two axis x using Pythagorean Theorem again:

x=\sqrt{(\frac{1}{2}L)^{2}-(\frac{\sqrt{2}}{4}L)  ^{2} } =\sqrt{\frac{1}{8} L^{2} } =\frac{1}{2\sqrt{2}} L=\frac{\sqrt{2}}{4} L

Finally, using the Parallel Axis Theorem, we calculate I_B:

I_B=I_A+Mx^{2} \\\\I_B=\frac{1}{12} ML^{2} +\frac{1}{4}  ML^{2} =\frac{1}{3} ML^{2}

5 0
3 years ago
Find the electric potential VP at point P. [Hint: To input a natural logarithm into the answer box, simply type the letters "ln"
Alik [6]

Answer:

After finding the electric potential VP at point P = Q/Чπϵ₀L ㏑(1+\frac{L}{d})

Explanation:

I believe it is a part C question.  

The derivative of V and P  will be directly proportional to the differential dq and the inverse of Чπϵ₀δ........

Please find detailed solution in the attached picture as i believe that is the answer to the part C question you are seeking for.

8 0
3 years ago
What is the name of the hottest and brightest supergiant star?
Firlakuza [10]
So the hottest stars<span> in the Universe are going to be a blue </span><span>star 
but i'm guessing the biggest star would be the sun</span>
7 0
3 years ago
Read 2 more answers
An air-track glider attached to a spring oscillates between the 15.0 cm mark and the 68.0 cm mark on the track. The glider compl
ipn [44]

Answer:

4.42 s

Explanation:

The frequency of the oscillation is given by the ratio between the number of complete oscillations and the time taken:

f=\frac{N}{t}

where for this glider, we have

N = 7.00

t = 31.0 s

Substituting, we find

f=\frac{7.00}{31.0 s}=0.226 Hz

Now we now that the period of oscillation is the reciprocal of the frequency:

T=\frac{1}{f}

So, substituting f = 0.226 Hz, we find:

T=\frac{1}{0.226 Hz}=4.42 s

6 0
3 years ago
What are the y cordinates? i cant fugure it out
Zepler [3.9K]

Answer:

Y coordinates are the numbers that go up and down along the y-axis

Explanation:

4 0
3 years ago
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