Category: Physics

Can scientists determine a more precise age of this snail fossil? Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages. Absolute dating is used to determine a precise age of a fossil by using radiometric dating to measure the decay of isotopes, either […]

Do humans get more energy from plants or meat? For example, when cattle eat grass, 90% of the energy in the grass is lost as heat, and if we humans eat beef, 90% of the energy in beef is lost as heat. As a result, we humans are only capturing about 1% of the energy […]

Is 6ft 2 tall for a girl? No, it’s not too tall. You’re as tall as you are and can’t do anything about that. That is the height your body grew to be so that is the height you’re supposed to be at. Is being 5’7 tall for a girl? Yes, she would definitely be […]

What temperature does water boil at 2 bar? 0.0°C, or 32°F. What is the boiling point of water at 1 atm? 99.97 °C What temperature does boiling occur at? At sea level, water boils at 100° C (212° F). At higher altitudes the temperature of the boiling point is lower. What can affect the boiling […]

What are two types of combustion? Here’s a closer look at five types of combustion: Complete Combustion. Complete combustion requires a combination of fuel and oxygen. Incomplete Combustion. Incomplete combustion occurs when there is not enough oxygen for the fuel to fully react. Rapid Combustion. Spontaneous Combustion. Explosive Combustion. What happens after combustion takes place? […]

How do you know if a graph is X and Y proportional? To determine if a proportional relationship exists look for the data to lie on a straight line passing through the origin. to examine the ratio y/x (instead of x/y). What does it mean if y varies directly with x? (Some textbooks describe direct […]

Can a molecule have zero rotational energy? Near zero some molecules will be in the ground states for translation, rotation and vibration. These molecules will have finite vibrational energy but zero rotational energy. What is the rotational quantum number? : a vector quantum number that determines the angular momentum of a molecule rotating about an […]

How quickly does alcohol evaporate at room temperature? Overall, the results showed that some of the alcohol in a glass of wine will evaporate in as early as 15 minutes after being set out and exposed to airflow, though it took up to 2 hours for the alcohol to drop 1% in those wines exposed […]

Which situation is the best example of translational motion? Translational motion is the motion by which a body shifts from one point in space to another. One example of translational motion is the the motion of a bullet fired from a gun. An object has a rectilinear motion when it moves along a straight line. […]

What are the 9 discipline of social science? Social sciences: a definition The major social sciences are Anthropology, Archaeology, Economics, Geography, History, Law, Linguistics, Politics, Psychology and Sociology. What is Applied Social Science example? Applied social sciences are those academic social science disciplines, professions and occupations which seek to use basic social science knowledge, particularly […]