In water, an upward force or buoyancy acts on any heavy object. For this reason a heavy object appears lighter when immersed in water and it becomes easy to lift it. Air is at rest will absorb same heat from our body. But being wet makes this worse. Both because air agitates the water and … Read more
The blood pressure inside our body is slightly larger than atmospheric pressure and the pressure acts along every direction equally. That’s why we don’t feel any pressure. Also read
The expansion of the liquid without considering the expansion of the container is called apparent expansion. Also read
If a one meter long glass tube opened at one end filled with mercury is put into a mercury filled container invertedly and perpendicularly due to air pressure the mercury level comes down. At a certain level it becomes steady which means a portion of tube’s upper area becomes vaccum. This vaccum is known as … Read more
If an object is put into still water and the amount of replaced water by the object is less than objects mass it will down, if the replaced water has same mass as the object it will float while its body will be fully drowned. Again, if the amount of replaced water is more than … Read more
The conditions of the floating or sinking of an object are-
How can you understand that a slide callipers has an instrumental error? The forth state of substance is plasma. This plasma is the ionized gas in very high temperature. A massive source of plasma is sun. Also other states are sources of plasma. Plasma state is generated in a state of few thousand degree Celsius … Read more
If at the smallest portion of a liquid some force is applied with a piston, than the bigger pistons will feel a much greater force than the applied force.