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A bicycle is supported so that it is stopped from falling sideways but can move forwards or backwards; its pedals are in their highest and lowest positions.
A student crouches beside the bicycle and applies a horizontal force, directed towards the backwheel, to the lower pedal.
(i) Which way does the bicycle move?
(ii) Does the chain-wheel rotate in the similar or opposite sense as the rear wheel?
(iii) Which way does the lower pedal move relative to the ground?
Write a short note on different kinds of capacitors. Applying Gauss's law derive the mathematical expression for electric intensity due to a charged conducting spherical shall
When the wavelength of wave remains unchanged, the scattering is known as elastic.
neutral point of bar magnet
The stopping potential of a photocell is 2.3 V. What is the initial velocity of an emitted photoelectron that is brought to a stop by the photocell?
why is nichrome wire used in electric heaters? properties of nichrome wire.
why ballistic missile is unpowered and unguided
Deduce the expression for expected fringe shift in Michelson Morley experiment. Discuss the result of experiment.
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
Dulong-Petit law (P. Dulong, A.T. Petit; 1819) The molar heat capacity is around to equal to the three times the ideal gas constant: C = 3 R.
What are the characteristics of dead stars? Dead stars are generally cold balls of material in empty space. A teaspoonful of white dwarf matter would weigh as more as an Ele
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