1. Water flows steadily down a vertical pipe of constant cross section. Neglecting friction, according to Bernoulli's equation, velocity decreases with height. 2. A liquid in an open right circular cylinder is given rigid body rotation about the axis of the cylinder. The pressure distribution in any vertical plane is uniform. 3. A curved surface is submerged in a static liquid. The horizontal component of pressure force on it is equal to the pressure force on a vertical projection of the surface. 4. A U-tube manometer measures the difference in total energy between two points.

Q: 1. 2. If the gravitational force of the earth decreases, the most likely scenario(s) is (are): (1)…

A: Given question is related to fluid mechanics.

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Q: A submarine (assuming spherical in shape) has a volume of approximately 10,000 ft3 and is descending…

A: Volume (V) = 10000 ft3Vt = 5 ft/sV = 3 ft/s

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Q: A cylindrical container with a diameter of 11.5 m. It has an outlet almost to the bottom, rounded…

A: Given: Diameter : 11.5 m Diameter of hole : 1.2 m h = 12 m

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.