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Mechanical energy E of particle, system or object is explained as the sum of kinetic energy K and potential energy U, i.e. E = K + U. It is a scalar quantity having dimensions [ML2T-2] and SI unit joule.
(i) It relays on frame of reference.
(ii) A body may have mechanical energy without having either kinetic energy or potential energy. Though, if both potential and kinetic energies are zero, mechanical energy will be zero. The result may or may not be true, i.e., if E = 0 either both KE and PE are zero or PE negative and KE positive such that KE + PE = 0
(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current
Boat A is travelling at 4.6 m/s. Boat B is moving away from boat A at 9.2 m/s, as shown in the figure below. The captain of boat B blows an air horn with a frequency of 550 Hz
As a 10 kilogram mass on the end of a spring passes through its equilibrium position, the kinetic energy of the mass is 20 joules. The speed of the mass is: a) 2.0 meters per
michelson interferometer principle
A small air bubble is inside a cube of 0.21 m. When viewed from one face it seems to be at a depth of 0.06 m, when viewed from opposite face the bubble seems to be at a depth of 0.
Method of Making magnet: There are two types of making magnets. Single Touch Method: a. In this method a bar magnet is rubbed on a hard steel bar. b. The magnet is k
And then did he sit up.IS THIS A SENTENCE OR A QUESTION
Q. Show the condition for dispersion without deviation? Q. A thin convex length of focal length 0.1m and a thin concave lens of focal length 0.1m are placed coaxially on contact
if we drill a hile along the diametre of earth and drop a ball inside it then what will happen the ball will occilate or drop down in the space
What is dielectric breakdown? Explain briefly the various factors contributing to breakdowns in dielectrics. Ans.: Electric Breakdown: When the electric field applied across
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