Category: Physics

What is the formula for rust? It is estimated that about one-seventh of all iron production goes to replace the metal lost to corrosion. Rust is apparently a hydrated form of iron(III)oxide. The formula is approximately Fe2O3•32H2O, although the exact amount of water is variable. How does class 7 prevent rusting? Galvanisation is a process […]

Is distance a scalar quantity? Distance is an example of a scalar quantity. A vector is any quantity with both magnitude and direction. What is meant by a scalar quantity? Scalar quantities are quantities that are described only by a magnitude. They do not have a direction of action. How do you identify a scalar […]

Can you drive at 50 mph on a motorway? Generally, to be fined for driving too slowly on the motorway, you need to be causing some kind of an issue for other drivers around you. You’re not breaking the law by doing 50 mph on the motorway. Can you speed during an emergency? You are […]

What are the three types of oil pumps? A Guide To How Different Car Oil Pumps Work Different Oil Pumps And Their Operation. Gear Type Oil Pump. The gear type oil pump is one of the most common types used in vehicles. The Rotor Oil Pump. Another common type of oil pump is the rotor […]

What do 3 parallel lines mean? In mathematics, the triple bar is sometimes used as a symbol of identity or an equivalence relation (although not the only one; other common choices include ~ and ≈). Particularly, in geometry, it may be used either to show that two figures are congruent or that they are identical. […]

Can paper be turned into a liquid? Yes it can be converted in liquid form by heating to a temperature in which all its molecular Bond break. The temperature must be below its boiling point but must be above its melting point and at that point it will change into liquid state. Also, on cooling, […]

How do you find the mass constant and height of a spring? W = kx. W is the weight of the added mass. Therefore, the spring constant k is the slope of the straight line W versus x plot. Weight is mass times the acceleration of gravity or W = mg where g is about […]

How do you explain refraction? Refraction is the bending of light (it also happens with sound, water and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms and rainbows. Even our eyes depend upon this bending of light. […]

What plane of motion is a push up Nasm? So even though exercises like push-ups or the seated hip adduction machine might seem like sagittal or horizontal plane movements, they are actually transverse plane movements due to the rotation that happens within either the shoulder or hip joints. What is the term for the production […]

How can you prove conservation of mass? After the reaction is complete and the materials separated, we find that we have formed 143.4 grams of silver chloride and 85.0 grams of sodium nitrate, giving us a total mass of 228.4 grams for the products. So, the total mass of reactants equals the total mass of […]