If the acceleration due to gravity is 10 ms-2 and the units of length and time are changed to kilometer and hour respectively,the numerical value of acceleration is
By which velocity a ball be projected vertically so that the distance covered by it in 5th seconds is twice the distance it covers in its 6th second (g = 10 m/s2).
A spring balance is graduated at sea level. If the body is weighted with this balance at consecutively increasing heights form the earth's surface the weight indicated by the balance will
An electron and proton are placed a distance r apart in air the ratio of the electro static force to gravitational force between them is of the order of
A charged oil drop is suspended in a uniform field of 3 x 104 V/m so that it neither falls nor rises.The charge on the drop will be (Mass of charge = 9.9 x 10-15 kg and g = 10 m/s2)
Nuclear fission experiments show that the neutrons the uranium nuclei into two fragment
of about the same size. This process is accompanied by the emission of several:
A lift is moving downwards at a very high constant speed. A passenger present inside the lift standing on a weighing machine would notice that his weight
The cables holding a passenger lift swap and lift falls freely towards the ground. A person inside the lift is standing on a weighing machine. What does he notice?
According to charles law there will be a change in the volume of a given mass of a gas by 1/273 of its original volume at 0°C if the temperature of the gas is changed by
An excess af silver nitrate is added to the aqueous barium chloride and the precipitate is removed by filtration. What are the main ions in the filtrate?
An organism of the lineage of animals in which the blastopore of the developing embryo becomes the anus, while a second opening becomes the mouth called:
Unlike Edgar Allan Poe whose works were ignored in his native country the works of Hawthorne were read and appreciated by the public and by contemporary critics
Her novel published to universal acclaim, her literary gifts acknowledged by the chief figures of the Harlem Renaissance, her reputation as yet ______ by envious slights, Hurston clearly was at the ______ of her career
Glendon providers a dark underside to Frederick Jackson Turner's frontier thesis that saw rugged individualism as the essence of American society ______ an individualism that she sees as ______ atomism
