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netineya [11]
2 years ago
13

kenneth warmed up a 100- ml sample of air in and expandable container. he displayed the resluts in the following graph. the resl

uts formed a straight line, so he extended the line the full length of the graph
Physics
1 answer:
shepuryov [24]2 years ago
3 0

Answer:

300k

Explanation:

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A solenoid of length 10 cm has 247 turns and a magnetic field at the center of 1.2 T. What is the current through the solenoid?
elena55 [62]

Answer:

386.6 A

Explanation:

We are given;

Solenoid length; L = 10 cm = 0.1 m

Number of turns; N = 247

Magnetic field; B = 1.2 T

Now, at the centre of a long solenoid of N turns/metre carrying a current(I), the formula for the magnetic field is given as;

B = μ_oNI/L

Making I the subject we have;

I = BL/μ_oN

Where μ_o is the vacuum of permeability and has a constant value of 4π × 10^(−7) H/m

Thus;

I = (1.2 × 0.1)/(4π × 10^(−7) × 247)

I = 386.6 A

6 0
2 years ago
What is the source of energy​
liberstina [14]
Fossil Fuels is the largest source for energy

Hope this is what you were asking :)
8 0
2 years ago
Diffraction is observable when the opening is ______ than the wavelength.
masya89 [10]
Diffraction is observable when the is smaller than the wavelength 
5 0
3 years ago
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What is the frequency of radiation whose wavelength is 11.5 a0 ?
irakobra [83]

Answer:

The frequency of radiation is 2.61 \times 10^{17} s^{-1}

Explanation:

Given:

Wavelength \lambda = 11.5 \times 10^{-10} m

Speed of light c = 3 \times 10^{8} \frac{m}{s}

For finding the frequency of radiation,

  c = f \lambda

  f = \frac{c}{\lambda}

  f = \frac{3 \times 10^{8} }{11.5 \times 10^{-10} }

  f = 2.61 \times 10^{17} s^{-1}

Therefore, the frequency of radiation is 2.61 \times 10^{17} s^{-1}

4 0
3 years ago
_____ are formed where bumps from two surfaces come into contact ?
Murrr4er [49]

Answer:

the answer would be microwelds.

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