Category: Physics

Which changes cause a gas to condense into a liquid? Condensation happens when molecules in a gas cool down. As the molecules lose heat, they lose energy and slow down. They move closer to other gas molecules. Finally these molecules collect together to form a liquid. What is component of gas in liquid? Liquid components […]

How can you tell if hair has been forcibly removed? Is it possible to determine if hair was forcibly removed from the body? Yes, a close examination of the hair root may tell you whether the hair has fallen out or has been pulled out of the skin. What color is your hair if you […]

Why does the shape of the moon keep changing? The Moon doesn’t emit (give off) light itself, the ‘moonlight’ we see is actually the Sun’s light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing […]

Which has the most oxygen atoms? Ernest Z. Truong-Son N. The biggest amount of oxygen is in 5,06×10-3 mol. Which is the minimum number of atoms of oxygen? Number of V2O5 molecules= (0.1×Avogadro’s number) molecules. =1.5×1023molecules. Considering option D. Hence, the minimum number of oxygen atoms are present in 10ml of H2O molecules. What is […]

What is the difference between velocity and acceleration group of answer choices? Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the […]

How much does 1 unit of insulin bring down blood sugar? One unit of insulin should cause your blood sugar level to drop 30 to 50 mg per dL, but you may need more insulin to get the same effect. What are the symptoms of being insulin resistant? The effects of insulin resistance extreme thirst […]

What are 3 signs of a chemical reaction? Key Concepts: Color Change. Production of an odor. Change of Temperature. Evolution of a gas (formation of bubbles) Precipitate (formation of a solid) What are 3 types of chemical changes? Types. Chemists categorize chemical changes into three main classes: inorganic chemical changes, organic chemical changes and biochemical […]

What will happen if a massive main sequence star runs out of hydrogen fuel? When a main sequence star begins to run out of hydrogen fuel, the star becomes a red giant or a red super giant. THE DEATH OF A LOW OR MEDIUM MASS STAR After a low or medium mass or star has […]

What is the deadliest war ever? World War II What was the bloodiest battle of ww2 for America? The Battle of Okinawa What is the D in D Day stand for? In other words, the D in D-Day merely stands for Day. This coded designation was used for the day of any important invasion or […]

How do you calculate magnifying power? Magnification power is calculated by dividing the focal length of the scanning object (lens) by the focal length of the eyepiece. A 1x magnification power is a 100 percent increase in the magnified object’s size For example, a 1-inch object at 1x would appear to be 2 inches. How […]