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Start learning 50% faster. Sign in nowR = 7cm h= 24cm volume of the cone = 1/3 πr2 h = 1/3 π ×49×24 = 392 π cm3
A particle starts from rest and accelerates uniformly at 2 m/s² for 10 seconds, then moves with constant velocity for 5 seconds, and finally decelerat...
The focal length of a concave mirror is 20 cm. Where should an object be placed to get an image of the same size?
A projectile is fired at an angle θ and reaches maximum height
H and range R. The angle between velocity and acceleration at the highest poin...
What is the value of acceleration due to gravity at the center of the earth?
In which direction does torque act?
An electron and a proton are accelerated by the same potential difference. Which one has a longer de Broglie wavelength?
Which property of a wave is related to its frequency?
If the vector sum of torques acting on a system is zero, then the object is in ________.
Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by –
The instrument used to see the distant objects on the Earth is –
