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Kitty [74]
3 years ago
5

Radio communications were severely Distributed last week And the local newspaper says that solar activity is to blame . Which ty

pe of solar activity could the newspaper be talking about ?
Physics
1 answer:
Juliette [100K]3 years ago
8 0

Answer:

Solar Flares and Prominences

Explanation:

    The sun is source of light and heat energy and it supports life on earth because sun is the primary source of energy. But sun is also a star and is a glowing ball of hot gases mostly hydrogen and helium. There are so many activity that takes place on surface of sun. But the two activity solar flare and prominences affect the radio communication.

Solar Flare  are electromagnetic energy built up in the sun atmosphere .These energy travel with the speed of light and affect outer atmosphere of earth. These increased level of X rays and ultraviolet rays ions the layer of ionosphere which becomes superionised. thus causing destructive interference.

The radio waves travel in ionosphere and  frequently collide with electron lose energy and completely blackout.

Prominence is defined as gaseous cloud of calcium,hydrogen and other gases floating above sun chromosphere and emit violently particularly near sunspots sometimes travel through space and affect radio communication.

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which of this is not example of simple machine? A) a crowbar,B)a knife,C)a bicycle,D)a wheelchair ramp
DaniilM [7]
B. Knife HOpe this helps :3
3 0
3 years ago
A car having an initial velocity of 12 meters per second speed up uniformly to 22 meters per second. This change is made in 4 se
Sonbull [250]

(22-12)/4

10/4

2.5 meters per second sqaured

7 0
3 years ago
if you put a pencil in a cup of water, it looks as if it is broken and larger in the water. This is because light waves
vladimir1956 [14]

Answer:

When light enters from air to water i.e. it is moving from rarer to denser medium, it changes its original path as there is a change of speed of light and deflects itself towards the normal. This is known as the refraction of light and this is why a pencil in a cup of water looks as if it is broken and larger.

Explanation:

5 0
3 years ago
Which of these ionic compounds have polyatomic ions? Check all that apply.
Taya2010 [7]

Answer:

  • CaCO₃ and
  • NaOH.

Explanation:

Polyatomic ions are ions that contain more than one atom in each one of the ions.  

Ionic compounds are made of cations (positive ions) and anions (negative ion). By convention, the cation is written before the anion.

List the ions in each compound:

<h3>CaCO₃</h3>

Cation: \rm Ca^{2+},

Anion: \rm {CO_3}^{2-}.

\rm Ca^{2+} is a monatomic ion for it contains only one atom in each ion.

\rm {CO_3}^{2-} is a polyatomic ion for it contains four atoms (one C atom and three O atoms) in each ion.

<h3>NaF</h3>

Cation: \rm Na^{+},

Anion: \rm F^{-}.

Both \rm Na^{+} and \rm F^{-} are monatomic for they contain only one atom in each ion.

<h3>FeO</h3>

Cation: \rm Fe^{2+},

Anion: \rm {O}^{2-}.

Both \rm Fe^{2+} and \rm O^{2-} are monatomic for they contain only one atom in each ion.

<h3>CaCl₂</h3>

Cation: \rm Ca^{2+},

Anion: \rm {Cl}^{-}.

Both \rm Ca^{2+} and \rm Cl^{-} are monatomic for they contain only one atom in each ion.

<h3>NaOH</h3>

Cation: \rm Na^{+},

Anion: \rm {OH}^{-}.

\rm Na^{+} is a monatomic ion for it contains only one atom in each ion.

\rm {OH}^{-} is a polyatomic ion for it contains two atoms (one O atom and one H atom) in each ion.

5 0
3 years ago
Read 2 more answers
Hilda plans to display in a clear cube the needle betsy ross used to sew the first american flag. the needle will fit exactly as
inysia [295]

Based on the length of side of the cube given, the length of the needle is 2.28 inches.

<h3>What is the length of the needle?</h3>

The length of the side of a cube and its diagonal are related by the formula below:

Length \:  of \:  Diagonal = \sqrt{3s}

where s is length of side

Side \:  Length  \: of \:  the \:  Cube = \sqrt{3inches}

Diagonal \: of  \: a  \: face \:  of  \: the \: cube = \sqrt{6inches}

The \: length \: of \: the \: needle = \sqrt{3\sqrt{3}}  = 2.28 \: inches \\

Therefore, the length of the needle is 2.28 inches

Learn more about length of diagonal of cube at: brainly.com/question/800212

#SPJ4

8 0
2 years ago
Read 2 more answers
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