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grandymaker [24]
3 years ago
9

The frequency of light emitted from hydrogen present in the Andromeda galaxy has been found to be 0.10% higher than that from hy

drogen measured on Earth.
Is this galaxy approaching or receding from the Earth, and at what speed?

Physics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

3x10^5m/s

Explanation:

See attached file

Explanation:

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What does a convergent boundary between oceanic and continental plate form?
Romashka [77]

Answer:

a convergent plate boundary

Explanation:

when one plate is oceanic, there are large volcanoes. These volcanoes are found in lines that outline the subduction zone. Earthquakes also happen in these zones. The Aleutian Islands that border southern Alaska are an island arc

7 0
4 years ago
How is new blood made?
Ksivusya [100]

Answer:

The bone marrow produces stem cells, the building blocks that the body uses to make the different blood cells. The erythropoietin sends a message to the stem cells telling more of them to develop into red blood cells.

7 0
3 years ago
Calculate specific heat of liquid if a 450. g iron block is heated to 98.0 C and then droped into a calorimeter with 125 g of un
Naya [18.7K]

Answer:

Specific heat of liquid 1.258 \ J/g^0C.

Explanation:

We know in thermal equilibrium :

Loss in heat by iron block = Gain in heat by liquid .

Specific heat of iron = 0.45 J/g^0C.  { source internet }

Now , loss in heat by iron block = mC_{iron}\Delta T=450\times 0.45\times 57.6=11664\ J.

Heat gain by liquid=mC_{liquid}\Delta T=450\times C_{liquid}\times 20.6=9270\times C_{liquid}.

Equating both we get :

C_{liquid}=1.258 \ J/g^0C.

7 0
3 years ago
There are 92 naturally occurring elements. How does this relate to the number of compounds?
raketka [301]

C) Elements combine in different ways to create many more than 92 compounds.

Explanation:

The number of elements we have relates to the compound formation in that, elements combine in different ways to create many more than 92.

Elements are distinct substances that cannot be split up into simpler substances. Such substances are only made up of one kind of atom.

Compounds are substances that are made up of two or more kinds of atoms joined together in a definite grouping.

  • Several millions of compounds are known because elements can combine in different ways.
  • The number of elements do not increase because new elements are discovered, it is because elements have several ways by they combine.

Learn more:

Chemical reactions brainly.com/question/3953793

#learnwithBrainly

3 0
3 years ago
Breaking a pencil in half is an example of: options:
Licemer1 [7]

Answer:

b

Explanation:

8 0
3 years ago
Read 2 more answers
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