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Alternative "a" is incorrect because social media do not require special training. Alternative "b" is incorrect because social media rely upon anonymous users who depend on the quality of the message. Alternative "d" is incorrect because traditional media are often expensive to produce.
One kilogram of ice at 0° C is mixed with one kilogram of water at 85° C. The final temperature of the mixture is
(Tale specific heat of ...
When do spring tides occur?
A cylindrical conductor of length L and radius R has its radius increasing linearly from R at one end to 2R at the other. A constant current I flows thr...
What is the work done if a force of 15 N moves a body by 3 meters in the direction of force?
Fog is an example of –
The refractive index of glass is 1.5. What is the speed of light in glass?
(Speed of light in vacuum is 3.0 ×108 m s-1)
An object of mass ‘m’ be made to fall freely from a height ‘h’. At the start the potential energy is _____ and kinetic energy is ______.
...A body of mass 2 kg is moving with velocity 3 m/s. What is its kinetic energy?
A circular coil of wire consisting of 120 turns, each of radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the ...