Define mechanical energy, Physics

Assignment Help:

Mechanical energy E of particle, system or object is explained as the sum of kinetic energy K and potential energy U, i.e. E = K + U. It is a scalar quantity having dimensions [ML2T-2] and SI unit joule.

(i)  It relays on frame of reference.

(ii) A body may have mechanical energy without having either kinetic energy or potential energy. Though, if both potential and kinetic energies are zero, mechanical energy will be zero. The result may or may not be true, i.e., if E = 0 either both KE and PE are zero or PE negative and KE positive such that KE + PE = 0

 


Related Discussions:- Define mechanical energy

Left-hand rule, left-hand rule: It is the opposite-chirality version o...

left-hand rule: It is the opposite-chirality version of the right-hand rule.

Friction, why friction is called a necessery evil?

why friction is called a necessery evil?

Objectives according to applications of ultrasonics, Illustrate the objecti...

Illustrate the objectives according to applications of ultrasonics? By learning the objectives of this section, you are familiar with following terms: a. Application of ultr

Temperature joule, Temperature joule; J (after J.P. Joule, 1818-1889) ...

Temperature joule; J (after J.P. Joule, 1818-1889) The derived SI unit of energy described as the amount of work done by moving an object by a distance of 1 m by applying a fo

Show the equilibrium under a flexible exchange rate, Q. Under fixed exchan...

Q. Under fixed exchange rate, show using a figure, the effects of an expansionary fiscal policy. Show the equilibrium under a flexible exchange rate. Discuss the difference in t

Omega, ohm; Omega; O (after G. Ohm, 1787-1854): The derived SI unit of...

ohm; Omega; O (after G. Ohm, 1787-1854): The derived SI unit of electric resistance, described as the resistance among two points on a conductor while a constant potential dif

When throwing a baseball a force is exerted by the hand, When throwing a ba...

When throwing a baseball, a force is exerted by the hand on the ball. a. Is this force a contact force or a field force? Contact Force b. Throwing a ball 6 m straight upwa

Determine displacement current density, In free space electric field intens...

In free space electric field intensity is provided as E= y 20 cos (ωt-50x) volt/m. Determine displacement current density.

Making a simple reflecting telescope, Making a simple reflecting telescope ...

Making a simple reflecting telescope A simple reflecting telescope can be made from a concave mirror obtain from a shaving mirror. The mirror is arranged wooden box of suitable

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd