Why boiling point of water decreases at high altitudes?
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Newton's first law is also known as _______.
The value of universal gravitation constant (G) was determined by
The area under a Velocity-Time graph represents ______________.
A Sonar of a ship sends sounds waves of speed 1000 m/s. These waves are reflected back by the ocean floor in 2 seconds. Find the depth (in m) of theocean floor.
The material used in electric heater is
______ is the perpendicular distance between point of application of force and axis of rotation.
A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/sq.s) is: