Category: Physics

Is IR and thermal the same? 4 Answers. The thermal radiation and the infrared radiation are the same thing if the sources of the radiation have temperatures comparable to the room temperature. For ordinary cold and lukewarm objects, the thermal radiation is mostly emitted in the infrared. Is Thermal Imaging same as infrared? Active IR […]

How does convection affect the inside of the earth? Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions. Where is the Moho interface? The Moho lies almost entirely within the lithosphere. Only beneath mid-ocean ridges does it […]

How rare is a fireball? This may sound like a long time, but good data has been collected on only about 800 fireballs so far. Of these, only 4 have been recovered on the ground as meteorites. A meteorite-causing fireball is very rare and must be at least magnitude -8 to have sufficient mass to […]

What is the fastest diffusion? Diffusion is fastest through gases, followed by liquid, then plasma, and lastly, solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. How do you know how fast a gas will diffuse? It states that the diffusion rate of a gas is inversely […]

Is Can you please a question? Senior Member. “Can” and “could” are both equally polite – the key word is “please”, which is present in both sentences. The sentence beginning with “please can…” is a question, and it should have a question mark. It is a mistake/omission by the writer. Could you please help me […]

Is friction force always present? Friction always acts to oppose any relative motion between surfaces. For the simple example of a book resting on a flat table, the frictional force is zero. There is no force trying to move the book across the table, so there is no need for a frictional force because there […]

What happen when air heats up? What happens when air is heated or cooled? So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward. This is the concept used […]

Should you always remember when handling microscope slides? When you hold a microscope slide, you should never hold the slide in the center. Why? Because if you hold it in the center, the slide will get dirty and the specimen that you will put on that slide might get dirt or when you look at […]

What is the atomic number of H+? It is a member of atomic nucleus, a monoatomic hydrogen, a monoatomic monocation and a monovalent inorganic cation. Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements….4.3Related Element. Element Name Hydrogen Atomic Number 1 What is the name of H+? In […]

Who is the longest girl in the world? While she is not the world’s tallest woman, her legs are 132 centimeters long….Svetlana Pankratova. Svetlana Pankratova Светлана Панкратова Education Virginia Commonwealth University Known for Previous record-holder for the longest legs of any woman in the world How long is the longest kiss in the world? 58 […]