Questions Answered

spoilt.brat1:
calculate the resultant moment. diagram in attachment.
 updated one year ago
 6 replies
 1 Medal

damrinder:
very important one...
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 updated one year ago
 5 replies
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damrinder:
Two men 0.68 km apart stand at the same distance from a vertical hillock.one of them fires a shot and the other man hears the echo 3seconds …
 updated one year ago
 10 replies
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damrinder:
when a current carying conductor is placed in the direction of the magnetic field it does not experience any force. WHY?
 updated one year ago
 12 replies
 2 Medals

damrinder:
IMPORTANT....
electrons are revolving around nucleus for the stability of atom thats what was postulated by bohr.but many students ask "WHO…
 updated one year ago
 8 replies
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03453660:
why dot product of vectors is a scalar quantity and cross product is vector quantity???
 updated one year ago
 6 replies
 1 Medal

dennis.heather11:
What happens to incoming light rays that are parallel to the principal axis of a conves lens? Do they converge or diverge at what focal poin…
 updated one year ago
 3 replies
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kritima:
Help please ! ... A wire of resistance R is bent to form a complete circle. find it's resistance between two diametrically opposite points.
 updated one year ago
 1 reply
 1 Medal

juanjohnguy:
Express in eV; The kinetic energy of a Li++ ion that has accelerated from rest through a potential difference of 5000V
 updated one year ago
 1 reply
 1 Medal

turkey:
The magnitude of the electric field between the plates of a parallel plate capacitor is 3.2 x 10^2 N/C. How would the field magnitude differ…
 updated one year ago
 3 replies
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dog98:
The goal is to increase the power;therfore,it is necessary to
 updated one year ago
 2 replies
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RiOT:
The model below represents a nuclear reaction. Atom 1 and Atom 2 are present before the reaction and Atom 3 is produced after the reaction.…
 updated one year ago
 1 reply
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princesss.:
A positive test charge is placed at the center of a spherical Gaussian surface.
What happens to the net flux through the Gaussian surface f…
 updated one year ago
 1 reply
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masha2204:
You know that the energy of ionization of the hydrogen is 13.6 eV. Compute the wavelength of light which can ionize an atom of hydrogen.
 updated one year ago
 1 reply
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wini_boson:
why only position dependent potential is conservative? why velocity dependent potential is not conservative?
 updated one year ago
 11 replies
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jennifer29:
at a constant pressure and a temperature of 280k the gas in a cylinder has a volume of 20.0 liters if the voulume of the gas is decreased to…
 updated one year ago
 1 reply
 1 Medal

damrinder:
whats the difference between angle of friction and angle of repose???
 updated one year ago
 4 replies
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yatu:
why it is not correct to say that potential difference is the work done in moving charge between the points concerned?
…
 updated one year ago
 1 reply
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mayankdevnani:
A block of wood of length 40cm and area of cross section 15cm^2 floats in water with 3/8 of its length above water.What is the density of wo…
 updated one year ago
 59 replies
 4 Medals

damrinder:
very urgent question...
construct the band structures for the bcc crystal lattice.also show the various steps involved.please its very urge…
 updated one year ago
 1 reply
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rvgupta:
Does the speed of light slow down near heavier objects? if yes, Explain
 updated one year ago
 28 replies
 3 Medals

ViPhy:
An nonuniform Magnetic Field can change the speed of a moving charged particle? (Speed not velocity).
Sorry, my english isn't good.
 updated one year ago
 2 replies
 1 Medal

jordanlovato:
Two parallel  plate capacitors with C_1 = 3 microFarad and C_2 = 5 microFarad are initially charged to V_1 = 200 Volts and and V_2 = 100 Vo…
 updated one year ago
 5 replies
 1 Medal

Mashfiq:
An object is project upward with a 30 degree launch angle and an initial speed of 39 m/s. How long will it take for the object to reach the …
 updated one year ago
 16 replies
 2 Medals

mk383:
The two charges in the figure below are separated by a distance d = 1.00 cm, and Q = +7.20 nC.
(a) Find the electric potential at A.
…
 updated one year ago
 1 reply
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Sidhantb5:
is width of secondary maximum and secondary minimum equal???
 updated one year ago
 13 replies
 2 Medals

damrinder:
"gravitational potential energy is a actually the energy of a system".and not just GPE but all potential energies are...."
comment....
 updated one year ago
 2 replies
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kankoo:
why do we measure mass in weight? if mass is how much space we take up then, how do we measure how much space we take up in weight? i mean n…
 updated one year ago
 32 replies
 1 Medal

85295james:
Which waves have wavelengths longer than those of visible light? Give an example of how each kind of wave is used.
 updated one year ago
 21 replies
 3 Medals

seidi.yamauti:
An undamped oscillator of mass m and natural frequency Wo moves under the action of an external force F=Fo sin(wt). Starting from the equili…
 updated one year ago
 8 replies
 1 Medal
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