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3 years ago

Please answer these diagrammatic questions ASAP and please no spam answers

Physics

1 answer:

SVEN [57.7K]3 years ago

3 0

Answer:

i. The pressure of due to the water, P, is given according to the following equation;

P = ρ·g·h

Where;

ρ = The density of the water (a constant) = 997 kg/m³

g = The acceleration due to gravity = 9.81 m/s²

h = The height of the water (minimum h = h₁, maximum h = h₂)

The pressure is directly proportional to the water height, and we have;

The pressure, P, will be maximum when the water height, h, is maximum or h = h₂, which is the level DC

ii. The thrust = The force acting on the body = Pressure × Area

The maximum areas exposed to the water are on side AB and DC

However, the pressure at level DC, which is the location of the maximum pressure, is larger than the pressure at level AB, therefore, the maximum thrust will be at the level DC

Explanation:

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hoa [83]

Answer:

The correct wording is

Pressure increases with the depth of the fluid.
A plane's engines produce thrust to push the plane forward.
A fluid can be a liquid or a gas.
A hydraulic device uses Pascal's principle to lift or move objects.
lift is the upward force exerted on objects by fluids.

Explanation:

1. As you go deeper into a fluid, there is more of it on top of you; therefore, the pressure excreted on you is greater.

2. A plane's engines pushes the air in opposite direction, which according to newton's third law, produces necessary force to move the plane forward.

3. A fluid has no fixed shape, and it deforms under the influence of external forces applied—liquid and gases fit into this definition.

4. Pascal's principle says that pressure applied on one region of the fluid must equal pressure transmitted to another region of the same fluid. This principle is used in a hydraulic device to exert forces on fluids to lift objects that would otherwise be difficult to move.

5. By definition, the upward force exerted by the fluids on objects is the lift.

7 0

3 years ago

Will the star of bethlehem be visible on december 21st

nikklg [1K]

Answer:

The best time to view the spectacle on Dec. 21 will be around an hour after sunset.

8 0

3 years ago

The aorta is the main artery from the heart. a typical aorta has an inside diameter of 1.8 cm and carries blood at speeds of up

defon

Answer:

Explanation:

Volume per unit time flowing will be conserved

a₁v₁ = a₂ v₂

π r₁² x v₁ = π r₂² x v₂

(0.9 x 10⁻²)² x .35 = ( .45 x 10⁻² )² x v₂

v₂ = 1.4 m / s

3 0

3 years ago

If a rock has a speed of 12 m/s as it hits the ground, from what height did it

grin007 [14]

Answer:

To find the height the following formula should be used:

v 2 = u 2 + 2aH

Explanation:

Assuming this occurs on earth, a= 9.8 ms -2

-2 2

12=0+2 x9.8 x H

144

_______ =H

2 x 9.8

H= 7.35m

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3 years ago

Would the solar panel work under a fluorescent or halogen light? explain your response being sure to relate your observations to

lina2011 [118]

A solar panel are most efficient under natural sunlight, however, a solar panel can work using artificial light simply because a solar panel collects photons which collide with silicon atoms transferring their energy which cause them to lose electrons.

3 0

3 years ago

Please answer these diagrammatic questions ASAP and please no spam answers​

Please answer these diagrammatic questions ASAP and please no spam answers