The buoyant force is the upward force exerted on an object immersed in a fluid, such as water or air. This force is caused by the pressure difference between the top and bottom of the object. The pressure at the bottom is higher than at the top, pushing the object upward. This is due to the weight of the fluid displaced by the object, following Archimedes' principle.
The buoyant force exerted by the air on the balloon must be equal to the weight of the balloon in order to maintain a constant altitude. This means that the buoyant force is 17500 N and it is balancing the weight of the balloon. If the buoyant force decreases for any reason, the balloon would start to descend.
A steel ship floats in water because of its shape and displacement. The design of the ship creates enough buoyant force to counteract its weight, allowing it to stay afloat. Additionally, the steel hull of the ship displaces enough water to keep it buoyant.
The steel ship floats because of its shape and displacement of water, creating an upward buoyant force greater than its weight. The steel needle sinks because of its small volume and weight relative to its size, leading to a downward force greater than the buoyant force acting on it.
No, it depends on volume of water displaced, density has nothing to do with it. Think of it like this: if that object wasn't there, wherever it is would be filled with water. Thus, the force on it depends on how much water it pushed out of the way. As much water as it pushed away is how much force the water, as a whole, is exerting on it. the reason denser objects displace more water is this: they are heavier. the Force of gravity is constant, and so the greater mass (density is mass/volume) the greater the downward pull. Thus, the object can push more water out of its way, because it has greater force to push with. Therefore, to reach equilibrium, where the forces cancel, the object must sink to the point that buoyant forces and gravity are equal, and since gravity is greater, it must sink to a greater buoyant force.
The only reason a material is able to reflect light is because of its smooth surface and the substance that it is made of which are physical property
the buoyant force of the liquid on the solid is more than the buoyant force of the air on the solid.
Chief Complaint
Presumably, you are describing the spring-charging mechanism on high-voltage circuit breakers? If so, then the reason is because, in the event of an electrical fault in which the substations loses its a.c. supply, the circuit breakers can be recharged from the standby d.c. batteries.
instinct?
True
That's really going to come down to the reason it's jammed. Could be as simple as just working the mechanism, it could be a matter of cleaning and lubricating the mechanism, or it could need replacement parts.
Physical reason refers to the scientific explanation for a phenomenon or result based on known principles of physics. It involves identifying and understanding the underlying physical mechanisms that are responsible for how and why things happen in the physical world.
The physical world is tied into
There are two or three reason why a period will stop. One is that your are pregnant. Another is a physical reason like being sick, under stress, or intense physical training. The final reason is menopause.
A physical or cultural reason for something can be very different from one another. For example, a physical reason for not engaging in a game of cricket may be that a person is physically unable to play, a cultural reason may be that they don't know the rules, having never learned them as the game isn't culturally prevalent in all areas.
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Physical change reason being it is