Horizons: Exploring the Universe - With MindTap
14th Edition
ISBN: 9781337578080
Author: Seeds
Publisher: Cengage
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Question
Chapter 7, Problem 1RQ
To determine
Why we cannot see below photosphere in sun.
Expert Solution & Answer
Explanation of Solution
Part of the sun that can observe directly are photosphere, chromosphere, and corona. As we move deeper, the gas gets denser. Gas below the photosphere is enough to produce a continuous spectrum, but atom present in photosphere won’t allow the light to pass through. Almost no light seems to emerge below the photosphere. That’s why we can’t see deeper into the sun that the photosphere.
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Questions 68-70
Four hundred millilitres (mL) of a strong brine solution at room temperature was poured into a measuring cylinder
(Figure 1). A piece of ice of mass 100 g was then gently placed in the brine solution and allowed to float freely
(Figure 2). Changes in the surface level of the liquid in the cylinder were then observed until all the ice had melted.
Assume that the densities of water, ice and the brine solution are 1000 kg m-3, 900 kg m3 and 1100 kg m3,
respectively.
68
Figure 1
400
400
Figure 2
1m² = 1x10 mL
After the ice was placed in the brine solution and before any of it had melted, the level of the brine solution
was closest to
485 mL.
B
490 mL.
C
495 mL.
Displaced volume by ice.
D
500 mL.
weight of ice
69
The level of the brine solution after all the ice had melted was
A
490 mL
B
495 mL
D
1100kg/m² = 909 xious mis
70 Suppose water of the same volume and temperature had been used instead of the brine solution.
In this case, by the time all the ice had melted, the…
Chapter 7 Solutions
Horizons: Exploring the Universe - With MindTap
Ch. 7 - Prob. 1RQCh. 7 - What evidence can you give that granulation is...Ch. 7 - Prob. 3RQCh. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Prob. 7RQCh. 7 - Prob. 8RQCh. 7 - Prob. 9RQCh. 7 - Prob. 10RQ
Ch. 7 - Prob. 11RQCh. 7 - How can solar flares affect Earth?Ch. 7 - Prob. 13RQCh. 7 - Prob. 14RQCh. 7 - Prob. 15RQCh. 7 - Prob. 16RQCh. 7 - Prob. 17RQCh. 7 - Prob. 18RQCh. 7 - Explain why the presence of spectral lines of a...Ch. 7 - What energy sources on Earth cannot be thought of...Ch. 7 - What would the spectrum of an auroral display look...Ch. 7 - Prob. 4DQCh. 7 - The radius of the Sun is 0.7 million km. Examine...Ch. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - If a sunspot has a temperature of 4200 K and the...Ch. 7 - How much energy is produced when the Sun converts...Ch. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - The United States consumes about 2.51019 J of...Ch. 7 - Prob. 10PCh. 7 - Prob. 1LTLCh. 7 - Prob. 2LTLCh. 7 - Prob. 3LTL
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