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vesna_86 [32]
3 years ago
15

Which of the following statements correctly describe the various applications listed above?

Physics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

The answer is "c,d,e, and g".

Explanation:

The correct choices can be defined as follows:

  • Higher-frequency microwaves aren't used in any of these systems.
  • Infrared waves aren't seen in each of these technologies.
  • Its shortest wavelength of all of the technologies listed is the above radiation generated by certain wireless networks.
  • These devices all produce waves of wavelengths ranging from 0.10 to 10.0 cm.
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You discover a binary star system in which one member is a 15 solar mass main-sequence star and the other star is a 10 solar mas
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A star with 15 solar masses is too big to be a main-sequence star.

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3 years ago
An object dropped from Cliff falls with a constant acceleration of 10 metre per second square find its Speed of two seconds afte
julsineya [31]

Answer:

20 meters per second

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Two identical satellites orbit the earth in stable orbits. Onesatellite orbits with a speed vat a distance rfrom the center of t
Lelu [443]

Answer:

c) At a distance greater than r

Explanation:

If G= Gravitational constant

M= Mass of earth

r= distance from earth center

then orbital speed is ;

v = \sqrt{\frac{GM}{r} }

==> v²=GM/r

If speed of first satellite = V₁

==> V₁² = GM/r

==> r = GM/V₁²

If speed of second satellite say V₂ is less than V₁ then square of V₂ will be less than square of V₁ , and hence GM will be divided by less number in case of second satellite, and hence will give greater value of r as compared to first satellite.

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5 0
2 years ago
Calculate the resistance of an electric bulb which allows a 10 A current when connected to a 220 V power source
kodGreya [7K]

Resistance can be calculated by Ohm's law

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V = i * R

here we will have

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current = 10 A

So by the above formula we will have

220 = 10* R

R = 22 ohm

So resistance of the bulb is 22 ohm.

4 0
3 years ago
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