work and energy, Physics

Assignment Help:
a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer

Related Discussions:- work and energy

Damping coefficient, what is the physical significance of damping coefficie...

what is the physical significance of damping coefficient?

What is fundamental units, The physical value which does not depend on any ...

The physical value which does not depend on any other physical quantity is known as a fundamental physical quantity like length; mass and time are known as fundamental units.

Working of electric motor, Construction: A motor require essentially a rec...

Construction: A motor require essentially a rectangular coil called armature a permanent magnet, a device called commutator to reverse the direction of current and a source of ele

Determine the initial rate of voltage rise, A circuit having of a 10μF capa...

A circuit having of a 10μF capacitor connected in series with a 25 k resistor with a switchable 100V d.c. supply. When the supply is connected, calculate (a) The time constant,

Metallised paper capacitors, One side of impregnated paper capacitors is sp...

One side of impregnated paper capacitors is sprayed with metal.  When such paper is rolled, its gives higher capacitance for a given value. This capacitor has a self healing proper

What is meant by the rest mass energy of an electron, What is meant by the ...

What is meant by the rest mass energy of an electron? According to the Einstein's Theory of Relativity, the mass of a body (say a particle) occurs on the energy and on the mom

PLz help, your dog is running around the grass in your back yard. He underg...

your dog is running around the grass in your back yard. He undergoes successive displacements 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displacement. h

The nucleus of helium contains, The nucleus of helium contains : (1)Four...

The nucleus of helium contains : (1)Four protons (2)Four neutrons (3)Two neutrons and two protons (4)Four protons and two electrons Ans: (3)Two neutrons and two prot

Inertia with a stone, Inertia with a stone You will require a stone wei...

Inertia with a stone You will require a stone weighing about 1 kg for this experiment. Wrap a length of heavy string about the stone. Now, on opposite sides of the stone, join

What is dielectric breakdown, What is dielectric breakdown? Explain briefly...

What is dielectric breakdown? Explain briefly the various factors contributing to breakdowns in dielectrics. Ans.: Electric Breakdown: When the electric field applied across

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