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two chargeq each are kept 1m apart where should third charge be placed in order to get third charge
find time period and frequency of vibration of water level in a limb of manometer executing simple harmonic
water jet machining is an advanced method for cutting plates using a high-velocity water jet mixed with abrasive powder the jet comes out of a
forceforce may be defined as a push or a pull upon an object in the english system the pound 1b is used to express the value of a force for
energythe term energy may be defined as the capacity for doing work there are two forms of energy potential energy and kinetic energypotential
powerthe rate of doing work is called power and it is defined as the work done in unit time as a formula this would bepower work donetime
workin its technical sense work is the product of force and distance and work is done only when a force causes movement we can see this by the
assume the metallic ball is spherical with a diameter d 25 cm let3939s also assume it is made out of nickel which has a density of roughly 9
an ostrich can run at speeds of up to 72kmh suppose an ostrich runs 15km at the speed of 58 kmh and then runs another 15km at the speed of 29kmh what
a car with an initial speed of 245 kmhr accelerates at a uniform rate of 098 ms2 for 56sec find the final speed and displacement of the car during
when to identical cells are connected either in series or parallel across a 2 ohm resistor they send the same current through it calculate the
azelastine hydrochloride is an antihistamine nasal spray a standard size container holds one fluid ounce oz of the liquid you are searching for this
population inversionthe process in which the number of electrons n2 in a higher energy state called lsquometastable state of an active medium is
phenomenon of interference of water waves1 arrange two identical adjacent pins s1 and s2 vibrating in a ripple tank with the same frequency2 in
ripple tankthe concept of reflection and refraction of light waves can be understood by the study of reflection and refraction of waves on water
huygens wave theoryhuygens wave theory is not correct in all respects2 it assumes simply that light energy is propagated as a wave3 at the time of
concept of wave front the basis of huygens wave theory of light is his principle concerning construction of wave frontwhen a disturbance from
microprocessor a combination of ics cal led a microprocessor the data is processed in the microprocessor according to the instructions given
detection receiver the antenna receiver these modulated waves from different transmitting stationschannel selector selects the desired signals the
the amplified video signals are amplitude modulated using a suitable rf carrier wave in a transmitter called lsquoam picture transmitter similarly
production of audio and video signalsiconoscope is a type of camera consisting of a cathode ray beam and a photoelectric cell the picture is
majority and minority charge carriers a pure semiconductor has equal number of holes and electrons but an extrinsic semiconductor has majority
electrons and holes in semi-counductormetals have free electrons available in conduction band for conduction of electric current as the valence
historical development of atomic modelsin olden days there was an idea that all matter is made of tiny indivisible particleswhen thomson discovered
the decrease of mass is related to the binding of the individual particles together inside the nucleustherefore every stable nucleus has a mass