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a bomber plane moves horizontally with a speed of 500 ms and a bomb released from it strikes the ground in 10 sec angle at which it strikes the
where does cog and com differgenerally both coincidesgive example where both differans cog and com mainly coincides at the see-level regionbut cog is
if an ideal gas is kept inside a container with movable piston and is allowed to expand isothermally then pressure exerted by the gas on the
how is that circuit wont be broken even there is an air gap in between the parallel platesans in ac circuit capacitor offers resistance to current as
how does an equilibrium is disturbed by adding 1 mole of h2 in the following reactionn2 3h2 ----gt 2nh3 ans the equilibrium will not be affected
how to find the acceleration of a body in a non inertial frame on the action of frictionsolution use the concept of pseudo forcemultiply the mass
each of the series 357 and 4710 is continued to 100 terms find how many terms are identicalans 48 terms would be common to both the seriesfirst take
use lhopitals rule since lim x--gt0 1-cosx1-cos4x is in the indeterminate form 00 when we apply the limtso by lhoptitals rule
the emf of the driver cell of a potentiometer is 2v amp its internal resistance is negligible the length of the potentiometer wire is 100cm amp
a scooterist is racing at a speed of 72 km per hour if the radius of the wheel is 20 cm find the angular speed of the wheels ans
what do you understand by temperature independence paramagnetismans compounds which are expected to be diamagnetic may exhibit this kind of weak
if the distances from origin of the centres of 3 circles x2y22alphaix a2 i123 are in gp then length of the tangents drawn to them frm any point on
in an ideal transformer the no of turns in primary amp secondary are 200 amp 1000 respectively if power input to primary is 10kw at
as x tends to zero the value of 1x tends to either infin or -infin in this situation we will not be sure about the exact value of 1x as a result we
the ratio of the concentration of the products raised to its stoichiometric coefficient to the concentration of the reactants raised to its
when a moving body changes with timethen we say that the body has accelerationsimentaniously the change in velocity is equal then it is called
to work out the gravitational potential energy of an object the equation isgpe m x g x hwherem the mass of the object kgg gravitational field
a ball dropped from a balloon at rest clears a tower 81m high during the last quater second of its journey find the height of the balloon and the
abc are natural numbers and are in arithmetic progressions and abc21then find the possible values for abcsolution abc21ac2b3b21b7a can be 123456c can
question 1 a car of mass 800 kg is pulling a trailer of mass 300 kg up the slope of angle to the horizontal where sine 1200 resistance to
most of the transition metal do not displace hydrogen from dilut acid why ans the activity series of transition metals is less than that of hydrogen
the points abc and d represent the numbers z1z2z3 and z4abcd is rhombusac2bdif z22i z41-2ifind z1 and z3ans b21 d1-2mid point 32-12write
a man can do a piece of work in 25 days how many people are required to complete same work in 15
surface tension is a contractive tendency of the surface of a liquid that permits it to resist an external force it is revealed for instance in the