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Inertia: the resistance an object has to a alter in its state of motion.
Newton's first law of motion declares that force is NOT required to keep an object in motion.
Slide a book across the table and watch it slide to a rest position. The book in motion on the tabletop does not come to a rest position due to the absence of a force; rather it is the presence of a force - the force of friction - that brings the book to a rest position.
which electronic level would allow the hydrogen atom to absorb a photon but not to emit a photon
Consider a pentavalent impurity such as phosphorus (P, Z = 15) is doped in a pure semiconductor germanium (Ge, Z = 320. Each phosphorus atom forms four covalent bonds with four ger
The speed at which a wave propagates down a string is 300 meters per second. If the frequency of this wave is 150 Hertz, what is the wavelength of this wave? Ans: The wavel
Superposition principle of forces The net force onto a body is equivalent to the total forces impressed upon it. superposition principle of states The resultant qu
if two metal spheres are mounted on insulators then how will we give them equal charge by using a charged glass rod?
Why does it take longer to heat a bucket of water than a cup of water? Because there is extra water in a bucket than in a cup, and more energy has to be put into the bucket of
How transistors work
Linear circuit :- It can be described as one, whose parameters are constant i.e. they do not change with voltage or current.
Q Define threshold frequency? The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident r
Get an expression for lateral shift produced by a parallel sided glass slab placed in air.
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