For a nonholonomic mechanical system,the generalized Mei conserved quantity and the new generalized Hojman conserved quantity deduced from Noether symmetry of the system are studied.The criterion equation of the Noether symmetry for the system is got.The conditions under which the Noether symmetry can ...
Thermal energy may be appearing here as a rogue quantity, but it can be and is put to excellent use in cooking and other realms. When you digest food, you convert chemical energy from the bonds in carbohydrates, proteins and fat to heat ("calories" instead of joules in common terms). ...
Energy is a universal term we use a lot in our daily life. Although used loosely quite often, energy has a specific physical meaning. In physics, we define energy as the ability of something to do work. Energy can exist in many forms. All forms of energy are either kinetic or potential...
Stress is directed on the interior surface of the object. It can be directed either along the longitudinal axis or in all directions of the body. Is stress a vector or scalar? Stress is a vector quantity. Why is stress called a tensor? Stress is called a tensor because despite being a ...
In this article, we will discuss about the concepts of force and its types in detail. Force A force is a quantitative description of the interaction of two objects. It is a vector quantity, which means it has both magnitude and direction. For instance, to pull a box from the floor, you...
Force as a Vector Quantity Forces on a Moving Object Forces on a Static Object Examples of Force Lesson SummaryShow Frequently Asked Questions What is an example of a force in physics? The most common examples of forces are gravitational and normal forces. Gravitational force is a non-contac...
Please make note that work is not only done by displacing an object but also due to compression and elongation of the system as in the case of spring. It is a scalar quantity involving the product of two vector quantities that are force and displacement and the product of two vectors ...
Understand the basic method of calculating pumping speed, or volume flow rate, with an introduction to types of flow in vacuum physics
Ch 7. Essential Concepts in Physics Law of Conservation of Matter | Definition & Examples 3:59 Length Contraction | Formula, Examples & Elements 8:16 Law of Inertia | Overview & Formula 9:06 Scalar Quantity | Definition, Rules & Examples 4:27 Vertical Velocity Definition, Formula & Ex...
Algebra is also associated with functions which are mathematic expressions that define a relationship, and functions always contain at least one unknown quantity. The function {eq}r(x, y) = \sqrt(x^2 + y^2) {/eq} relates two points, x and y, and to the radius of a circle, r. ...