Why is V WR? V = wr uses w instead of omega for keyboard convenience, where w equals radians per second., and r is the radius. If the period of rotation is t, then w = 2pi/t (two pi radians in a circle divided by one rotation period). So v = 2pi*r/t. Is RPM angular […]
Why is the final velocity 0?
Why is the final velocity 0? People mistakenly think the final velocity for a falling object is zero because objects stop once they hit the ground. In physics problems, the final velocity is the speed just before touching the ground. Once it touches the ground, the object is no longer in freefall. Can a 50 […]
What are the basic principle of environmental science?
What are the basic principle of environmental science? Based on the foundations of previous work, four basic principles of environmental science are put forward in this paper: systematic principle of environment, principle of environmental capacity, symbiosis principle of human between environment, and entropy principle. What is an environmental principle? The EU environmental principles offer protection […]
How is atomic number related to mass number?
How is atomic number related to mass number? The number of protons determines an element’s atomic number and is used to distinguish one element from another. Together, the number of protons and the number of neutrons determine an element’s mass number. Is atomic mass equal to mass number? Atomic mass is also known as atomic […]
Why is a monopole magnet still impossible to exist?
Why is a monopole magnet still impossible to exist? A magnetic monopole does not exist. Just as the two faces of a current loop cannot be physically separated, magnetic North pole and the South pole can never be separated even on breaking a magnet to its atomic size. A magnetic field is produced by an […]
What is an example of a ferromagnetic material?
What is an example of a ferromagnetic material? Some of the examples of ferromagnetic materials are cobalt, iron, nickel, gadolinium, dysprosium, permalloy, awaruite, wairakite, magnetite, etc. There are many ferromagnetic materials, some of the ferromagnetic materials lists is shown in the below table. Can you repel a ferromagnetic material? Can a magnet ever repela ferromagnetic […]
What does a bad rear axle bearing sound like?
What does a bad rear axle bearing sound like? The main indicators of a rear axle bearing failure are noise, play and leaks. Using noise from a rear axle to diagnose a wheel bearing can be difficult. A “whirring” noise while decelerating at any or all speeds is most likely caused by bad pinion bearings […]
What is the largest landform in the world?
What is the largest landform in the world? Plains Why are landforms important? Landform is the best correlation of vegetation and soil patterns at meso- and microscales. This is because landform controls the intensity of key factors important to plants and to the soils that develop with them (Hack and Goodlet 1960; Swanson and others […]
What type of energy is stored in coal?
What type of energy is stored in coal? Chemical energy When coal is burned energy is being converted to energy? When coal is burned, Chemical energy is being converted to Heat/Thermal energy. As we energy is being neither created nor destroyed but transforms or converts from one form to another. In this way, chemical energy […]
Is KMnO4 an acid or base?
Is KMnO4 an acid or base? Potassium permanganate is a strong oxidizing agent in acid medium, but is a weak oxidant in the neutral and alkaline medium. How many atoms are present in potassium permanganate? Now by looking at the formula of the compound we know that there is one potassium atom, one Manganese atom […]