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Why as the water falls its speed increases and the area of cross section decreases?
It is explained by mass conservation, and water being an incompressible fluid.
Imagine water going through a pipe with varying inside diameters Di's. Water will
flow the fastest in the pipe section with the smallest diameter, and will flow the
slowest in the widest section of the pipe.
The product of the volumetric average velocity of the water flow v, times the
cross section area A, is equal to the volumetric flow rate (vol/time) G.
G = v∙A
If you have a constant volumetric flow rate, if the area reduces to half, the velocity doubles.
By the way, if you multiply the volumetric flow rate G by the liquid density ρ, you
get the mass flow rate Q, (mass/time). Q = G∙ρ = ρ∙v∙A
What else can I help you with?
What happen to the potential energy of an object as it falls?
As an object falls, its potential energy decreases and is transformed into kinetic energy. This is due to the force of gravity doing work on the object as it moves downwards. The potential energy is converted into kinetic energy, which increases the object's speed as it falls.
What kind of energy increases as its height decreases?
nutition provides with energy to liv better and grow. So if you eat as followed in the food pyramid, you should big and strong... don't you agree
When air pressure increases the liquid in a Mercury barometer what?
When air pressure increases, it exerts greater force on the surface of the mercury in the barometer. This additional pressure causes the mercury to rise higher in the glass tube, indicating a higher atmospheric pressure. Conversely, if the air pressure decreases, the mercury level falls. Thus, the height of the mercury column in the barometer is directly related to the atmospheric pressure.
What happens to pressure as altitude increased?
As altitude increases (i.e. when you get higher) pressure falls off inversely; a change near the higher reaches will not have as much of a pressure differential as the same distance change lower down.
What happens to the particles in something if the temperature falls?
When the temperature falls, the particles in a substance slow down and lose energy. This can cause the substance to contract or solidify, depending on the type of material and how much the temperature decreases.
As a ball falls what type of energy decreases and what type of energy increases?
As a ball falls, its potential energy decreases as it converts to kinetic energy. As it moves closer to the ground, its kinetic energy increases at the expense of potential energy.
As a ball falls downward what energy decreases and what energy increases?
As a ball fall downwards, it's velocity continuously increases, therefore the kinetic energy increases. As the height from the ground level decreases, the potential energy decreases. Further, the total mechanical energy remains constant throughout the motion.
Any expense that rises or falls is a variable?
Yes.Any number that increases or decreases is a variable as it's value "varies".
What happens is the price falls below the market clearing price and there is no equilibrium?
Quantity of demand increases and supplies decreases.
How is potential energy tansformed into kenetic energy?
For example, when an object falls, its potential energy decreases, but its kinetic energy increases, i.e., it falls faster and faster.
What rises and falls in sound intensity?
The amplitude of a sound wave rises and falls to create variations in sound intensity. As the sound intensity increases, the amplitude of the sound wave increases, resulting in a louder sound. Conversely, as the sound intensity decreases, the amplitude of the sound wave decreases, resulting in a quieter sound.
How does producer surplus change as the equilibrium price of a good rises or falls?
Producer surplus increases as the equilibrium price of a good rises, and decreases as the equilibrium price falls.
When the ball falls back toward the floor its energy increases and its decreases?
As the ball falls toward the floor, its potential energy decreases due to gravity pulling it downward while its kinetic energy increases as it gains speed. This exchange between potential and kinetic energy follows the principle of conservation of mechanical energy.
When a object falls.. PE decreases and KE increases?
Yes, as an object falls, its potential energy (PE) decreases due to a decrease in height, while its kinetic energy (KE) increases as it gains speed from the pull of gravity. The total mechanical energy of the object (PE + KE) remains constant if we ignore air resistance.
Does mechanical energy of a coconut falling from a tree increases or decrease?
The mechanical energy of a coconut falling from a tree decreases. As the coconut falls, its potential energy (due to its height) is transformed into kinetic energy (due to its motion). Therefore, the total mechanical energy (potential energy + kinetic energy) decreases as the coconut falls.
As an object falls towards the ground what happen to the kinetic energy of the object?
As the object falls towards the ground, its gravitational potential energy decreases and is converted to kinetic energy. This means that the kinetic energy of the object increases as it gets closer to the ground.
As an object freely falls downwards what increases?
As an object freely falls downwards, its speed and kinetic energy increase due to the acceleration of gravity. At the same time, its potential energy decreases as it moves closer to the surface of the Earth.
