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Why does float water?
Objects float in water because of a principle known as buoyancy. When an object is placed in water, it experiences an upward force equal to the weight of the water that it displaces. If this upward force is greater than the object's weight, the object will float.
What happens to your weight if the earth gravitational pull gets 3 times stronger?
Your weight becomes three times as greater.
If the action force is the downward push of his weight on the chair what is the reaction force?
In the opposite direction, and on the other object. In this case, the chair pushes upward against the person.
Does pensil floats on kerosene?
Yes, a pencil will float on kerosene because the density of the pencil is less than the density of kerosene. The upward buoyant force acting on the pencil is greater than its weight, allowing it to float.
Why do boats float even if their materials are more dense than water?
Boats float because of the principle of buoyancy. The weight of the boat is evenly distributed across its hull, displacing an amount of water equal to its weight. This creates an upward force, known as buoyant force, that is greater than the weight of the boat, allowing it to float.
What happens t the reading scale as the elevator begins to move upward?
As the elevator begins to move upward, the reading on the scale will increase due to the increase in apparent weight experienced by the person inside the elevator. This increase is a result of the combination of the person's actual weight and the upward acceleration of the elevator.
What happens if the buoyant force on an object is greater than the weight of the object?
If the buoyant force on an object is greater than the weight of the object, the object will float. This is because the buoyant force will push the object upward with a force greater than the force of gravity pulling it downward.
When the buoyant force on an object is greater than its weight the object is?
... accelerated upward in the fluid.
What happens to the buoyant force is greater than its weight?
If the buoyant force is greater than the weight of an object, it will float on the surface of a fluid. This is known as buoyancy, where the upward force from the fluid exceeds the downward force of gravity on the object.
What happens to the reading on the scale as the elevator begin to move upward?
As the elevator moves upward, the reading on the scale will temporarily increase. This is because the scale measures the force exerted by the person standing on it, which includes their weight and an additional force due to the upward acceleration of the elevator.
What happens if upthrust is bigger than the weight of an object?
If the upthrust is greater than the weight of an object, the object will experience a net upward force causing it to float or rise in a fluid (like a buoyant object in water). This is because the upthrust or buoyant force exerted by the fluid on the object is greater than the weight of the object, resulting in a buoyant effect.
When your weight is greater than mg and when your weight is zero?
When your weight is greater than mg, the normal force acting on you will be greater than your weight, resulting in an upward force. When your weight is zero (for example, during free fall), the normal force is also zero as there is no contact surface to exert a force on you.
Why does a helium balloon rise higher than an air balloon?
Any object surrounded by a fluid is buoyed up by a force equal to the weight of the fluid it displaces. There's an upward force on a cork in water that's equal to the weight of the water it displaces. There's an upward force on a helium balloon that's equal to the weight of the air it displaces. It so happens that a balloon full of helium weighs less than the air it displaces, so the upward force on it is greater than its weight.
What over comes gravity to lift a load?
A force greater than the weight of the load,applied to it in the upward direction, does.
What happens to the terminal velocity if the weight is greater?
Other things (the volume and shape) being equal, a greater weight would cause a greater terminal velocity.
How much force is needed to lift 78 pounds person into the air?
To lift a 78 pound person into the air with a constant velocity, you would need to exert a force equal to 78 pounds (the weight of the person) in the upward direction. This force is required to counteract the force of gravity acting on the person.
What happens when the weight of an object is greater than the bouyant force?
It sinks
