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A body of mass m1 , moving with velocity u1 collides head on with a body of mass m2 moving with a velocity u2 the two bodies stick together after the collision the loss of kinetic energy after the collision is ?Ans) Initial KE of the system= 1/2 [ m1.u1^2 + m2.u2^2 ]applying conservation of momentum we get new velocity of the new body= (m1.u1-m2.u2) / (m1+m2)new KE of the Body= [ (m1.u.1 - m2.u2) / 2.(m1+m2) ]^2Subtracting and simplyfing we get the loss in KE after Collision= [ m1.m2. (u1 + u2)^2 ] / [ 2.(m1 + m2) ]
give brief detail of heat loss in cylindrical pipe
Ultrasonic-interferameter 1.defenition 2.applications 3.uses 4.free lenth 5.Compressibility Ans)An Ultrasonic Interferometer is a easy and direct device to determine the ul
Explain about the inverse piezoelectric effect. Inverse piezoelectric effect: While an alternating e.m.f is applied to the opposed faces of a quartz or tourmaline crystal th
The mass of 1 mole of electrons is: (1) 9.1x 10 -28 g (2) 1.008mg (3) 0.55mg (4) 9.1x 10 -27 g Ans: (3)0.55mg
why we called it
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.
comparison of magnetic moments using an vibrational magnetometer
When a physical property such as charge exists in discrete "packets" rather than in continuous amounts, the property is said to be: a) Discontinuous b) Abrupt c)
A longitudinal wave with a frequency of 34 Hz takes 1.0 s to travel the length of a 2.5 m Slinky (see the figure). Determine the wavelength of the wave. λ = ( )m
to derive expreation for magnitude & direction for the resultant which two are acting at a point
Since the objects stick together they will be a part of plastic collision...so. conservation of kinetic energy cannot be applied...Apply conservation of linear momentum and then find individual velocitiesthen loss of kinetic energy will be change in kinetic energy......So,it will become equal to amount of work done.
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