On the ground the gravitational force on a satellite is W. What is the gravitational force on the satellite when at a height R/50,where R is the radius of the Earth
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?
The displacement time graph for the two particles A and B are straight lines inclined at 60° and 30° with the same axis.The ratio of the velocity of B is
Volume of metal cylinder with the help of a vernier callipers of least count 0.01 cm when diameter is 1.22 cm and length 5.35 cm. Find its uncertainty as
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
Two forces 3 N and 2 N are at an angle 0 such that the resultant is R.The first force is now increased to 6 N and the resultant becomes 2R.The value of θ is
Surface and ground water sources are contaminated by various human activities. Which of the following is not human activity that causes contamination in fresh water
Increased awareness of environmental issues has led chemists to develop products and processes that do not impact on the environment in terms of pollution or depletion of sources. To help chemist to achieve this aim, some principles are drawn. Which one is not the guiding principle
The molecular mass of a polymer is obtained by multiplying mass of the monomer unit the degree of polymerization. The degree of polymerization of PVC is 1000. What is molecular mass
In the cyclic structure of the glucose when the position of atoms on carbon 1 is called one isomer changes to other. These isomers of glucose are called:
CFC's are known to cause depletion of ozone layer therefore their use has been banned in refrigerators and air conditioners. Which alternate compound may be suitable to replace CFC
.Both aldehydes and ketones are planar to the neighborhoods of carbonyl (C-0) group. Which one of the following bonds is distorted towards the oxygen atoms?
Lipids are naturally occurring compounds produced in cell and are water insoluble but soluble in organic solvent one of the following is not a lipid, Select among the following:
Biosphere is spread out over the surface of planet earth extending about ______ kilometers in the upper reaches of atmosphere and also in same distance into the depths of oceans
In place of the more general debate about abstract principles of government that most delegates probably expected the Constitutional Convention put ______ proposals on the table
Primarily accomplished through the use of the electron microscope researchers have recently vastly increased their knowledge of the process of cell division
The authority of voice in Frazer's writing strikes many readers today as ______ colonialism; his prose seems as invulnerable and expansive as something on which the sun was presumed never to set
Because Inspector Mumtaz could not contain his scorn for the police commissioner, he was imprudent enough to make ______ remarks about his superior officer
The commission studying mass transportation suggested that the Metropolitan Transit Authority hold off purchasing new subway cars and spend money instead on preventive maintenance of all cars on repairs of substandard cars on crime prevention in all stations an better lighting for the busiest stations
