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Does the lift depend on the surface area of the balloons?
NO...
How does a hot air balloon return to Earth's surface?
A hot air balloon comes down when less lift is provided by reducing balloon air temperature to control descent.
How does a balloon hovercraft work does it have lots of forces acting on it and what does friction have to do with it?
A balloon hovercraft works by releasing air from the balloon to create a cushion of air that reduces friction with the surface. The lack of friction allows the hovercraft to move smoothly over the surface. The main forces acting on the hovercraft are thrust, lift, and gravity, which work together to keep it hovering.
How does the shape of a hot air balloon affect it's flight?
The shape of a hot air balloon, typically a rounded teardrop shape, allows it to trap and contain heated air for lift. The larger surface area at the bottom helps generate more lift due to the pressure difference with the surrounding air. A streamlined shape also minimizes air resistance during flight.
Why does a hot air balloon float even though it is so heavy?
Relatively hot air balloon are pretty light, and they have a very large balloon which is filled with hot air, which naturally rises, and if you contain enough of it it is enough to lift the balloon.
How does the size of a balloon effect the mass it can weigh?
The mass a balloon can lift is affected by its size and the amount of air it can displace. A larger balloon can lift more mass because it can displace more air and create more lift. However, if a balloon is too large, its weight may exceed the lift it can generate, limiting the mass it can carry.
What is free lift in pilot balloon?
The free lift of the Pilot Balloon is defined as the difference between the total lift and the weight of the balloon and its load. The free lift is really the net buoyancy of the balloon. Thus free lift is the force tending to drive the balloon (Hydrogen filled) upward, which depends upon the amount of hydrogen gas filled in it. If a hydrogen balloon is inflated until it floats with certain weight attached to it, than it indicates that the attached weight balances the upward force acting on it. This weight is called free lift of the balloon and if weight is removed, the balloon rises up (with fixed rate of ascent corresponding to weight attached while inflating).
How lift produced in aircraft?
lift = 1/2 air density x velocity squared x surface area
How much PSI is needed to lift a pound?
To lift one pound using air pressure, you need approximately 1 psi. This is based on the principle that 1 psi can lift about 1 pound per square inch of surface area. Therefore, if you have a larger surface area, you would need proportionally less psi to lift the same weight. For example, a surface area of 2 square inches would require only 0.5 psi to lift 1 pound.
What is the name for the surface area of a dimpled surface?
The surface area of a dimpled surface is often referred to as the "effective surface area." This term accounts for the increased area created by the dimples compared to a smooth surface of the same overall dimensions. In contexts like aerodynamics or fluid dynamics, this effective surface area can influence factors such as drag and lift.
Why is the size of balloon in the hot air balloon important?
The size of the balloon in a hot air balloon is crucial because it determines the amount of hot air it can hold, which in turn affects its ability to lift the basket and passengers. A larger balloon can hold more hot air and generate more lift, while a smaller balloon will have less lift capacity. Finding the right balance in size is essential for the balloon to safely and effectively carry its load.
How much can a helium balloon lift?
depends how big the helium balloon is and how many
