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

Electrostatic, Why we are showing work done over a closed path is zero to ...

Why we are showing work done over a closed path is zero to prove that electrostatic forces are conservative

Student, A mirror cleaned with an alcohol solution is slightly colder right...

A mirror cleaned with an alcohol solution is slightly colder right after it is cleaned. Why?

Longitudinal waves and tuning forks, Longitudinal Waves and Tuning Forks ...

Longitudinal Waves and Tuning Forks Sound waves are generates through vibrating objects. Whether it is the sound of a person's voice, the sound of a piano and the sound of a tr

Holes in semiconductors , (1) Holes works as virtual charge, although there...

(1) Holes works as virtual charge, although there is no charge on holes. (2) Effectual volume of hole is more than electron. (3) Mobility of hole is fewer than electron.

What speed does it collide into the other sphere, Two flawlessly conducting...

Two flawlessly conducting spheres are in an evacuated region of space. One is at a potential of 12 volts as well as the other is at a potential of 15 volts. A free electron is rele

How can light be classify in simplest form, How can light be classify in si...

How can light be classify in simplest form? Answer:- The common description of light (visible) is electromagnetic radiation visible to the human eye. It is only a little p

Explain the diagramming waves, Explain the Diagramming Waves? There are...

Explain the Diagramming Waves? There are two ways that waves can be indicated in a two-dimensional diagram. Parallel lines can be drawn that are meant to show the position of

Kinematics, for small values of theta sine theta is equal to tan theta . ho...

for small values of theta sine theta is equal to tan theta . how?

Explain fungal prophylaxis in hsct, Fungal Prophylaxis in HSCT  A prosp...

Fungal Prophylaxis in HSCT  A prospective randomized double- blind trial in 882 adults and children compared prophylaxis with mica fungin 50 mg IV once daily (1 mg/kg for patie

How we calculate the speed of the water of a river, A boat can travel at a ...

A boat can travel at a speed of 3 m s -1 on still water. A boatman needs to cross a river whilst covering the shortest possible distance. In what direction should he row with resp

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