Can anything survive a black hole? Although their gravity is stronger, the stretching force is weaker than it would be with a small black hole and it would not kill you. The bad news is that the event horizon marks the edge of the abyss. Nothing can escape from inside the event horizon, so you […]
What happens when a sound source is moving?
What happens when a sound source is moving? When the sound source moves toward an observer, each successive wave is emitted closer to the observer than the previous wave and takes just a little less time to reach the observer than the previous one. Since the time between waves is reduced, the frequency is increased. […]
What happens when you mix sodium and chlorine?
What happens when you mix sodium and chlorine? If sodium metal and chlorine gas mix under the right conditions, they will form salt. The sodium loses an electron, and the chlorine gains that electron. This reaction is highly favorable because of the electrostatic attraction between the particles. In the process, a great amount of light […]
What is the scientific method for identification?
What is the scientific method for identification? The acronym for a scientific method: Analysis, Comparison, Evaluation, and Verification (see individual terms). The acronym for Automated Fingerprint Identification System. The first step of the ACE-V method. The assessment of an impression to determine suitability for comparison. How do I know if I have systemic issues? We […]
What happened to the pregnant wife in Chernobyl?
What happened to the pregnant wife in Chernobyl? One of the main characters in HBO’s miniseries “Chernobyl,” the pregnant wife of a young firefighter, still lives in Ukraine. The real-life Lyudmilla Ignatenko recently told the BBC that reporters have accused her of killing her unborn child. Why did Chernobyl cause birth defects? A 2010 study […]
What are 3 differences between ionic and covalent bonds?
What are 3 differences between ionic and covalent bonds? An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms. Ionic bonds form between a metal and a nonmetal. Covalent […]
What is break even analysis and its assumptions?
What is break even analysis and its assumptions? 1. Break-even analysis is based on the assumption that all costs and expenses can be clearly separated into fixed and variable components. It assumes that fixed costs remain constant at all levels of activity. It should be noted that fixed costs tend to vary beyond a certain […]
How often does aurora australis occur?
How often does aurora australis occur? Most southern lightshows occur during the Southern Hemisphere’s fall and winter months, which stretch from March through September. Here are four aurora australis hotspots for those looking for a southern celestial spectacle. What are the two most common and two most rare colors seen in auroras? The colors most […]
How can we determine the size of the Earth?
How can we determine the size of the Earth? It was generally agreed upon that measuring the size of Earth could be done by measuring the altitude of a star from two cities situated on the same meridian. Then, a difference expressed in degrees would be found. How is the Earth’s curvature measured? How could […]
Is inhaling helium bad?
Is inhaling helium bad? The more pure helium you inhale, the longer your body is without crucial oxygen. Breathing in pure helium can cause death by asphyxiation in just minutes. Inhaling helium from a pressurized tank can also cause a gas or air embolism, which is a bubble that becomes trapped in a blood vessel, […]