Category: Physics

How is temperature determined? Temperature is the quantity measured by a thermometer. Temperature is related to the average kinetic energy of atoms and molecules in a system. Absolute zero is the temperature at which there is no molecular motion. There are three main temperature scales: Celsius, Fahrenheit, and Kelvin. Does reheating meat kill bacteria? Proper […]

Is it OK to leave your RV plugged in all the time? When your RV is connected to an electric outlet, the batteries charge. While you can certainly keep your RV plugged in all the time, doing so can drain your wet-cell batteries’ water levels more quickly, so be sure you’re checking them often if […]

What is the longest lasting tennis ball? Pro Penn Marathon What tennis ball lasts the longest? Penn Pro Marathon Extra Duty tennis What is the best tennis ball for hard court? Best Tennis Balls for Hard Courts Reviews Penn Championship High Attitude Tennis Ball. Wilson US Open Extra Duty Tennis Balls. DUNLOP ATP Championship Extra […]

How do you know if a trait is recessive? If both parents do not have the trait and the child does, it is recessive. If one parent has the trait and the child does or does not, it is dominant. What does recessive mean in simple terms? Recessive is defined as a gene with characteristics […]

How photon is created? A photon is produced whenever an electron in a higher-than-normal orbit falls back to its normal orbit. During the fall from high energy to normal energy, the electron emits a photon — a packet of energy — with very specific characteristics. A sodium vapor light energizes sodium atoms to generate photons. […]

¿Cuál es el enfoque de la educación fisica en lo cultural? La Cultura Física, más conocida como Educación Física , es una disciplina de tipo pedagógica que se centra en el movimiento corporal para luego desarrollar de manera integral y armónica las capacidades físicas, afectivas y cognitivas de las personas con la misión de mejorar […]

How accurate are home DNA testing kits? Since most of us aren’t geneticists, it can seem daunting. But here’s the bottom line: “Are home paternity tests accurate?” Yes! You can expect to see the exact same results for a home paternity test as you would for a legal, court-admissible test if all DNA samples submitted […]

Is nitrogen inert or active? Nitrogen is an inert gas that is suitable for a wide range of applications, covering various aspects of chemical manufacturing, processing, handling, and shipping. Nitrogen is not reactive and it is excellent for blanketing and is often used as purging gas. Is nitrogen a main group element? In chemistry and […]

Is C60 safe? Most current evidence suggests that C60 isn’t toxic in humans, though more research is needed. According to a 2016 review, human and animal studies have found that reactions to application of C60 on the skin are uncommon. One 2012 study found that various doses of C60 dissolved in corn oil were not […]

What is the name of K+ ion? potassium Why is potassium K+? The name is derived from the english word potash. The chemical symbol K comes from kalium, the Mediaeval Latin for potash, which may have derived from the arabic word qali, meaning alkali. What is the symbol for beryllium? Be Is Potassium a negative […]