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Rudiy27
3 years ago
10

A spring vibrates 120 times in 2 mins find its frequency and time period​

Physics
1 answer:
german3 years ago
3 0

2 minutes is 120 seconds, so if you were finding vibrations per minute, it would be 60 times a minute.

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!!!URGENT!!! Worth 100 points!!
slavikrds [6]

The snail would travel 100mm

Each minutes is 25mm and it took 4 minutes

4 x 25 = 100

or

25+25+25+25=100

7 0
3 years ago
Read 2 more answers
The electric field at the center of a ring of charge is zero. At very large distances from the center of the ring along the ring
Daniel [21]

Answer:

z = 1.16m

Explanation:

The electric field in a point of the axis of a charged ring, and perpendicular to the plane of the ring is given by:

E_z=\frac{Qz}{(z^2+r^2)^{\frac{3}{2}}}

z: distance to the plane of the ring

r: radius of the ring

Q: charge of the ring

you have that:

E_{z->0} = 0

E_{z->∞} = 0

To find the value of z that maximizes E you use the derivative respect to z, and equals it to zero:

\frac{dE_z}{dz}=Q[\frac{1}{(z^2+r^2)^{3/2}}+z(-\frac{3}{2})\frac{1}{(z^2+r^2)^{5/2}}(2z)]=0\\\\(z^2+r^2)^{5/2}=3z^2(z^2+r^2)^{3/2}\\\\(z^2+r^2)^2=3z^4\\\\z^4+2z^2r^2+r^4=3z^4\\\\2z^4-2z^2r^2-r^4=0\\\\z^2_{1,2}=\frac{-(-2)+-\sqrt{4-4(2)(-1)}}{2(2)}=\frac{2\pm 3.464}{4}\\\\

you take the positive value:

z^2=\frac{2+3.464}{4}=1.366\\\\z=1.16m

hence, the distance in which the magnitude if the electric field is maximum is 1.16m

7 0
3 years ago
Asking a question is the same thing as creating a hypothesis.
Lesechka [4]

Answer:

That's not true. With an hypothesis, you are sure this whatever is going to work, open to being wrong. A question is just a question.

Explanation:

Hope this helps

3 0
4 years ago
Why does summer receive more daylight hours than winter?
Darya [45]
Probably because summer has a less chance to have cloudy and cold days rather than having hot days and how the sunsets and rises. And Global Warming has an effect on summer more (And making winters hotter too but still).
3 0
3 years ago
1. Imagine that you are traveling in a spaceship to the center of the Sun. Your ship’s shields protect you from heat, radiation,
bearhunter [10]

Explanation:

The innermost layer of the Sun is called as core. This can be called as the factory of the Sun where nuclear fusion of Hydrogen molecules result in formation of Helium and thus release a huge amount of energy in the form of light and heat. Here the temperature is around 15 million kelvin. It extends up to a distance of 86000 miles from center of the Sun.

The next layer is Radiative zone which extends up to 319000 miles. Here the temperature is 7million kelvin near the core to 2 million kelvin near the next layer. Here the energy is transferred through radiation process and it may take around 170000 years for the photons to cross this zone as they move in zigzag paths.

The next layer is Convective zone where the energy is transferred through convection process. This extends up to 432000 miles. The temperature changes from 2 million kelvin to around 6500 kelvin.

Then comes the Photosphere which is also called as the surface of the Sun because this is the layer of the Sun we can see normally. It extends up to 250miles from the end of convective zone. The temperature varies from 6500 K at the bottom to 4000K at the top.

The next layer is Chromosphere. This is normally invisible as the photosphere is too bright. But can be seen or photographed during the annular solar eclipse. It extends up to 1300 miles and has a temperature range of 4000K to 8000K.

Then comes a transition region of around 60miles. Here the temperature reaches up to 500000K.

After which lies the Corona. This is the outermost layer of the Sun with no upper limit. It can be said that the whole solar system is inside the corona of the Sun. The temperature here rise rapidly reaching up to a few million kelvin. The reason for this rise in the temperature in corona is still unknown.

5 0
3 years ago
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