Category: Physics

Where was the node in the Tacoma Narrows Bridge collapse? In the case of Tacoma Narrows, there was a node (no twisting) exactly at the middle of the center span. How long did the Tacoma Narrows Bridge last? After 29 months of construction, a new and much safer Tacoma Narrows Bridge opened on Oct. 14, […]

What is called electric resistance? In electronics and electromagnetism, the electrical resistance of an object is a measure of its opposition to the flow of electric current. The reciprocal quantity is electrical conductance, and is the ease with which an electric current passes. Does 240V need a neutral? A 240V load needs two “ungrounded conductors”, […]

What does fully ionized mean? When referred to an atom, “fully ionized” means that there are no bound electrons left, resulting in a bare nucleus. Regular stars largely contain hydrogen and helium that are fully ionized into protons (H+) and alpha-particles (He2+). Which element would have the highest ionization energy? helium What is Fluorines ionization […]

What is the darkest phase of the moon? The moment a thin sliver of the Moon becomes visible after New Moon is the beginning of the first intermediate phase, the Waxing Crescent Moon. In the past, this used to be called New Moon while the darkest phase was called Dark Moon. How long does the […]

On which day are your answering stats reset? Stats including CF score get reset on the 1st of every month (at 12:30 PM). This is to give you a better clarification on how many questions you have solved and skipped in a month. How many questions can you skip on Chegg question and answers? How […]

Is a survey a secondary source? Primary sources are the original documents of an event or discovery such as results of research, experiments or surveys, interviews, letters, diaries, legal documents, and scientific journal articles. diaries and letters. academic articles reporting NEW data and findings. What is secondary data analysis examples? They might search through periodicals, […]

How do you tell if the tide is coming in or out? You can tell if the tide is coming in or out by reading a local tide table since they list the predicted times that the tide will be highest and lowest. In the time that the tide shifts from its lowest point to […]

How can we increase the strength of magnetic field of solenoid? Strength of a Solenoid Adding more turns to the coil of wire increases the strength of the field. Increasing the amount of current flowing through the coil also increases the strength of the magnetic field. What is solenoid mention two ways to increase? Two […]

What are visible light examples? For example, the sun produces visible light. Incandescent light bulbs, fluorescent, and neon lights are other examples of visible light that we may see on a regular basis. Visible light is probably the most important of all electromagnetic waves for most of us. What color is the presence of all […]

What tests can be done to identify an unknown substance? How Do We Approach an Unknown Substance Gas Chromatography (GC) Gas Chromatography Mass Spectroscopy (GC-MS) Ion Chromatography (IC) High Performance Liquid Chromatography (HPLC) Dispersive Raman Spectroscopy. Fourier Transfer Infrared Spectroscopy (FTIR) What is the unknown solution? A titration is a technique where a solution of […]