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Montano1993 [528]
3 years ago
11

3. To most people sugar is a white substance. Is this the sugar that plants use during photosynthesis?

Physics
2 answers:
ki77a [65]3 years ago
7 0

Answer:

I don't believe so...

Also... I have a question up for world history, if any of you mind checking it out, i rlly need some help with it. thanks so much and good luck on your exams

Explanation:

drek231 [11]3 years ago
4 0

Answer:

No

Explanation:

,I personally don't think so

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Consider a model of a hydrogen atom in which an electron is in a circular orbit of radius r = 5.92×10−11 m around a stationary p
DaniilM [7]

Answer:

2.068 x 10^6 m / s

Explanation:

radius, r = 5.92 x 10^-11 m

mass of electron, m = 9.1 x 10^-31 kg

charge of electron, q = 1.6 x 10^-19 C

As the electron is revolving in a circular path, it experiences a centripetal force which is balanced by the electrostatic force between the electron and the nucleus.

centripetal force = \frac{mv^{2}}{r}

Electrostatic force = \frac{kq^{2}}{r^{2}}

where, k be the Coulombic constant, k = 9 x 10^9 Nm^2 / C^2

So, balancing both the forces we get

\frac{kq^{2}}{r^{2}}=\frac{mv^{2}}{r}

v=\sqrt{\frac{kq^{2}}{mr}}

v=\sqrt{\frac{9\times 10^{9}\times1.6\times 10^{-19}\times 1.6\times 10^{-19}}{9.1\times 10^{-31}\times 5.92\times10^{-11}}}

v = 2.068 x 10^6 m / s

Thus, the speed of the electron is give by  2.068 x 10^6 m / s.

6 0
3 years ago
4. Compara. La composición de la gasolina para los coches cambia del invierno al verano. La mezcla de los componentes de la gaso
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If the work done on a object is 100 J and it comes to a rest on a surface with a mass of 10
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3 years ago
If the original pressure is 5 atm and original volume is 100 L, and the new volume is 20 L, what is the new pressure?
Nana76 [90]
P1V1=P2V2
5*100=P2*20
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3 years ago
A train increases its speed steadily from 10 m/s to 20 m/s in
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Answer:

15m/s

Explanation:

add the two speeds and divide by 2

10+20=30

30/2=15

3 0
3 years ago
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