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A bob hanged to astrirg in a box .it is displaced to an agle of 45 .then fid the acceleration of the box at this moment.Ans) gsin45,that is 10/1.4142.as it would have only tangential accelaration.
Why is the mass of a nucleus always less than the sum of the masses of its constituents, neutrons and protons? If the total number of neutrons and protons in a nuclear reaction
A sphere of radius R touches two adjacent sides of a room.It also touches an inclined plane at a height of R/5 from the floor.the inclined plane moves towards the sphere at the spe
An impulse of 10 kilogram-meters per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: a) 0.5 meters per second b) 2 met
True or False 1)Clothes always get static cling when dried in a clothes dryer 2) Dust stick to all charged objects 3) Static Electricity always stays in one place and never move
Drake equation (F. Drake; 1961) A technique of estimating the number of intelligent, technological species (that means, able to communicate along with other species) in existe
Consider a bowling ball as well as a Ping Pong ball each moving along a straight line path at constant velocity. Which has the higher magnitude of momentum? Answer: One req
Use the mirror equation to deduce that: (a) an object placed between f and 2 f of a concave mirror produces are al image beyond 2f. (b) a convex mirror alwa
A box is divided into two parts of equal volume via a partition. The box is thermally insulated from the surroundings. Consider that compartment 1 contains an ideal gas A at P 0 ,
Q. What is Einstein's photoelectric equation? Explain the laws of photoelectric effect with the help of this equation. Photoelectric Effect : The emission of electron from
an object has moved through a distance.can it have zero displacement?if yes support your answer with an example
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