When we pull up a bucket of water from a well, we feel that the bucket has become lighter above the surface of the water. As the bucket rises, water drips off, reducing its overall weight. This sensation occurs due ...
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Weightlessness occurs in the zero state of gravity. In this condition, objects experience apparent weightlessness because there is no gravitational force acting on them. Weightlessness can be simulated in environments such as space, where objects and individuals float freely due ...
Steel is the most elastic among the options provided. Elasticity refers to a material’s ability to regain its original shape after deformation. Steel exhibits high elasticity, making it ideal for structural applications where resilience and durability are crucial.
A storm is predicted when the pressure of the atmosphere suddenly decreases. A rapid drop in atmospheric pressure often indicates the approach of a storm system. This decrease in pressure is associated with unstable weather conditions, including strong winds, precipitation, ...
The egg floats in concentrated salt solution because the density of the salt solution is greater than the density of the egg. The increased density of the salt solution provides greater buoyant force, causing the egg to float. In soft ...
Ink comes out from a fountain pen in an aeroplane because air pressure decreases with increase in altitude. As the plane ascends, the surrounding air pressure decreases, causing the air inside the pen to expand. This expansion can force ink ...
If the gravitational force of the Earth suddenly disappears. The weight of the object will become zero, but the mass will remain the same. Weight is dependent on gravity, while mass is an intrinsic property unaffected by gravitational force changes.
A tennis ball bounces higher on a hill than on a field because Earth’s gravitational acceleration decreases on mountains. This decrease in gravitational force results in the ball experiencing less downward force, allowing it to bounce higher compared to a ...
The approximate height of a synchronous satellite from the Earth’s surface is 36,000 km. Synchronous satellites orbit the Earth at this altitude, matching the Earth’s rotational period, and appearing stationary relative to a fixed point on the Earth’s surface.
The ball dropped from an artificial satellite revolving around the Earth will continue to revolve around the Earth in its orbit with the same period of time as the satellite. Gravity keeps the ball in orbit, following the same path ...