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 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 […]
Can anything survive a black hole?
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 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 […]
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 […]
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, […]
Why do electrons want to be stable?
Why do electrons want to be stable? A complete octet is very stable because all orbitals will be full. Atoms with greater stability have less energy, so a reaction that increases the stability of the atoms will release energy in the form of heat or light. A stable arrangement is attended when the atom is […]
Can coefficient of drag be greater than 1?
Can coefficient of drag be greater than 1? Two objects having the same reference area moving at the same speed through a fluid will experience a drag force proportional to their respective drag coefficients. Coefficients for unstreamlined objects can be 1 or more, for streamlined objects much less. Does drag coefficient change with size? The […]
Does falling snow absorb sound?
Does falling snow absorb sound? When the ground has a thick layer of fresh, fluffy snow, sound waves are readily absorbed at the snow surface, dampening sound. However, time and weather conditions may change the snow surface. Then the surface will help reflect sound waves. Sounds may seem clearer and travel farther under these circumstances. […]