3 years ago

Describe the brightness and temperature of the stars classified as giants.

1 answer:

8 0

Answer:

A hotter star should be brighter than a cooler star. ... Although they are cool [red], they are very luminous, and therefore bright. In the Main Sequence, stars that are cool are not as luminous. Because the energy is spread across a larger area, surface temperatures are actually cooler, reaching only 2,200 to 3,200 degrees Celsius (4,000 to 5,800 degrees Fahrenheit), a little over half as hot as the sun

Explanation:

You might be interested in

What are the two cell division stages in the mitotic phase of the cell cycle?

Ugo [173]

Cytokinesis and telophase!

6 0

3 years ago

Tính phân tử khối của chất <br> Al(OH3)

Anton [14]

Answer:

78g/mol

hope its helps u

8 0

3 years ago

What is the molar mass of a substance?

Sveta_85 [38]

Answer:

The mass in grams of one mole of a substance.

3 0

3 years ago

*BRAINLIEST* Is calcium nitrate solution an element, compound, homogenous mixture, or heterogeneous mixture?

murzikaleks [220]

Answer:

It's a compound.

4 0

3 years ago

Read 2 more answers

Is the atom indicated with an arrow nucleophilic, electrophilic, acidic, more than one of these choices, or none of these choice

CaHeK987 [17]

Answer:

c) acidic

Explanation:

pKa is a value which describes the acidity of a solution. The solution is pKa ≤ 25 which means that the solution is more acidic. The lower value of pKa tells us that the solution is more acidic but when the pKa value of solution increases the acidity of the solution is also decreases. Due to lower value of pKa, the acid in the solution is fully dissociates in water.-5 to 50 is the range of the value of pKa for different solutions.

4 0

3 years ago