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Alecsey [184]
3 years ago
10

Which phrase best to find a star system

Chemistry
1 answer:
Paladinen [302]3 years ago
6 0

Assuming the answers are:

a group of hundreds of stars a group of two or more stars

a group of stars that formed around the same time

a group of two stars in which one star is brighter than the other

The correct answer is b:

a group of stars that formed around the same time

You might be interested in
A
DIA [1.3K]
  • V_1=49.8mL
  • T_1=18°C=291K
  • T_2=83°C=356K

Using Charles law

\\ \sf\longmapsto V_1T_2=V_2T_1

\\ \sf\longmapsto V_2=V_1T_2\div T_1

\\ \sf\longmapsto V_2=\dfrac{49.8(356)}{291}

\\ \sf\longmapsto V_2=\dfrac{17728.8}{291}

\\ \sf\longmapsto V_2=60.9mL

5 0
3 years ago
Sewage and industrial pollutants dumped into a body of water can reduce the dissolved oxygen concentration and adversely affect
MArishka [77]

Answer:

FALSE

Since 0.385 < 0.526, the value for week 3 is accepted.

Explanation:

Qexp = (|Xq - Xₙ₋₁|)/w

where Xq is the suspected outlier; Xₙ₋₁ is the next nearest data point; w is the range of data

First, the data are arranged in decreasing order, from highest to lowest:

3. 5.6

2. 5.1

8. 5.1

1. 4.9

6. 4.9

5. 4.7

7. 4.5

4. 4.3

Xq = 5.6; Xₙ₋₁ = 5.1; w = 5.6 - 4.3 = 1.3

Qexp = (|5.6 - 5.1|)/1.3 = 0.385

From tables, at 95% confidence level, for n = 8, Qcrit = 0.526

Since 0.385 < 0.526, the value for week 3 is accepted.

7 0
3 years ago
Which of the following reactions is a synthesis reaction? ​
tamaranim1 [39]
The first reaction is a synthesis reaction (A+B -> AB)
3 0
3 years ago
Read 2 more answers
A baseball that is moving through the air has ____________ energy. <br> A. potential <br> B. kinetic
Lunna [17]

Answer:

kinetic

Explanation:

3 0
3 years ago
According to the second law of thermodynamics, energy tends to become more spread out. True or False?
chubhunter [2.5K]
The answer is true. According to the second law of thermodynamics, energy tends to become more spread out 
8 0
4 years ago
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