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ATQ, Distance covered by car = 90 × 4.5 = 405 km Speed of the train = 405/3 = 135 km/h Increased speed of the car = 90 × 1.4 = 126 km/h Decreased speed of the train = 135 × 0.8 = 108 km/h Required difference = 126 – 108 = 18 km/hr
For a system of particles, the center of mass moves:
The velocity of heat radiation in a vacuum is?
What is the phenomenon of bending of light around corners called?
The dimension of which of the following is the same as that of impulse?
The moment of inertia of a hollow sphere of mass M and radius R about its diameter
If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same -
An athlete can jump farther by running before jumping due to which type of inertia?
A decibel is –
A beam of light consisting of two wavelengths, 600 nm and 420 nm, is used to obtain interference fringes in a Young’s double-slit experiment. Find...
Which atmospheric layer contains ozone layer?