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What is a H-R diagram?
The Hertzsprung--Russell diagram (or H-R diagram) is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. See related link for a pictorial
Why do temperatures on the moon's surface vary more than temperatures on Earth's surface?
Temperatures on the Moon's surface vary more than those on Earth due to the Moon's lack of a significant atmosphere. Earth's atmosphere helps to moderate temperatures by trapping heat and redistributing it through weather patterns. In contrast, the Moon experiences extreme temperature fluctuations, ranging from about 127°C (260°F) during the day to -173°C (-280°F) at night, as it has no medium to retain heat or buffer against solar radiation. This absence of atmospheric insulation leads to these dramatic temperature changes.
How does a space suit protect a human?
A space suit protects a human by providing life support and shielding against the harsh environment of space. It maintains pressure to counteract the vacuum, supplies oxygen for breathing, and removes carbon dioxide. Additionally, the suit insulates against extreme temperatures and protects against micrometeoroids and radiation. The visor also provides a clear view while shielding the eyes from harmful solar radiation.
Why do temperatures on the Moon's surface vary more than temperatures on earths surface?
Temperatures on the Moon's surface vary more than those on Earth's due to the Moon's lack of atmosphere, which means there is no medium to trap heat or distribute temperature evenly. While Earth’s atmosphere helps regulate temperatures and provides a buffer against extreme changes, the Moon experiences extreme temperature fluctuations, ranging from about 127°C (260°F) during the day to -173°C (-280°F) at night. This dramatic difference occurs because the Moon's rotation is slow, leading to long periods of sunlight and darkness.
Why do spacemen have to wear suits?
Space suits are necessary for astronauts to survive in the harsh environment of space. They provide protection against extreme temperatures, radiation, and the vacuum of space. They also supply oxygen for breathing and regulate internal pressure to prevent decompression sickness.
What is a H-R diagram and what two characteristics of stars are compared on it?
It is a diagram on which stars are plotted according to their absolute magnitudes (or luminosities) against their stellar classifications (or effective temperatures).
What does H-R diagram represent?
The H-R (Hertzsprung-Russell) diagram is a graphical representation of stars that plots their absolute magnitudes or luminosities against their effective temperatures or colors. It reveals the relationships between different types of stars, showing their evolutionary stages, such as main sequence stars, giants, and white dwarfs. The diagram helps astronomers understand stellar evolution and the physical properties of stars within the context of their life cycles.
Why is it impossible to reach absolute zero?
Reaching absolute zero (-273.15 degrees Celsius) is impossible because as an object reaches lower temperatures, its atoms eventually stop moving completely, which is against the laws of physics. This would violate the Third Law of Thermodynamics, which states that it is impossible for any system to reach absolute zero in a finite number of steps.
Why cant there be a temperature lower than absolute zero?
Temperature lower than absolute zero is not possible. Lower than absolute zero a gas contain negative pressure and volume which is not possible. temperature is the energy created by moving atoms absoulte zero is a complete stand still you can make particles move to the end of the universe but the coldest temperature will be stuck at the point where atoms are motionless
What is meant by absolute disadvantage?
Absolute disadvantage means a disadvantage that is completely working against any possible advantages something might have. Absolute Disadvantage is a deal breaker.
What is a H-R diagram?
The Hertzsprung--Russell diagram (or H-R diagram) is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures. See related link for a pictorial
Show magnitude in a graph?
To display magnitude on a graph, you can use a bar chart where the height of each bar represents the magnitude. Alternatively, a scatter plot can also be used, with the magnitude values plotted against a continuous variable (e.g., time). This allows for visual comparison of magnitudes across different categories or time periods.
What is meant by disadvantaged?
Absolute disadvantage means a disadvantage that is completely working against any possible advantages something might have. Absolute Disadvantage is a deal breaker.
What are some arguments for and against absolute monarchy as proposed by hobbes?
look for it in the book :D
What was The first English charter of liberties protecting against absolute power of the Crown?
Magna carta
What is the universally accepted standard of flexibility that you should compare yourself against?
There is no absolute measure of flexibility.
When did elizabeth 1 exonerate charges against Mary queen of Scots?
i do believe that i have no absolute clue as to what the answer of this is
