1010 - Physics Questions Answers
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A particle moves around a circle of radius R. In moment t = 0 it was located in point O. After, its velocity changes according to Vτ = αt - βt2, where α and β - positive constants. Find the modulus of the total acceleration when particle will be in point O again.
A BAR OF IRON IS 10 CM AT 20C .AT 19C IT WILL BE
if a body loses half of its velocity on penetrating 3cm in a wooden block then how much it will penetrate more before coming to rest.
two charged particles of mass m and 2m have charges +2q and +q respectively. they are kept in a uniform electric field far away from each other and then allowed to move for some time t . find the ratio of their kinetic energy
Two blocks of masses m1, and m2 connected by a light vertical spring of stiffness k, m2 kept on a smooth horizontal surface . What should be the initial compression of the spring so that the system will be about to break off the surface, after releasing the block m1?
a small ball of mass 1kg and a charge 2/3 uC is placed at the center of a uniformly charged sphere of radius 1m and charge 1/3 mC. a narrow smooth horizontal groove is made in the sphere from centre to surface as shown in figure. the sphere is made to rotate about its vertical diameter at a constant rate of 1/2pi revolutions per second. find the spedd w.r.t ground with which the ball slide out from the groove. neglect any magnetic force acting on ball?