What is a good science fair project hypothesis using tornado vortex aka tornado in a bottle?

What is a good science fair project hypothesis using tornado vortex aka tornado in a bottle?
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Description : Pick up the correct statement from the following: (A) The maritime structures should be designed to withstand wave motion of air (B) The wind vortex results in conical depression in the air surface (C) A tube of air rotating at hundreds of kilometres per hour forms a tornado (D) all of the above

Last Answer : (D) all of the above

The movement of air mass in the case of Tornado can be described as : (a) Forced vortex throughout (b) free vortex throughout (c) Forced vortex at the core and free vortex outside (d) Free vortex at the core and forced vortex outside

Description : The movement of air mass in the case of Tornado can be described as : (a) Forced vortex throughout (b) free vortex throughout (c) Forced vortex at the core and free vortex outside (d) Free vortex at the core and forced vortex outside

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When Sally buys Vortex using a channel with only one intermediary, that intermediary is classified as a A)retailer. B)wholesaler. C)broker. D)functional middleman. E)producer.

Description : When Sally buys Vortex using a channel with only one intermediary, that intermediary is classified as a A)retailer. B)wholesaler. C)broker. D)functional middleman. E)producer.

Last Answer : A)retailer.

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The method in which a hypothesis is scientifically tested (a) Biographical method (b) Experimental method (c) Heuristic method (d) Project method

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What hypothesis do science tests used to explain the movement of tectonic plates?

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Subject orientation A . The science of collecting, organizing, and applying numerical facts B. Measure of the probability that a certain hypothesis is incorrect given certain observations. C. One of the defining aspects of a data warehouse, which is specially built around all the existing applications of the operational data D . None of these

Description : Subject orientation A . The science of collecting, organizing, and applying numerical facts B. Measure of the probability that a certain hypothesis is incorrect given certain observations. C. ... specially built around all the existing applications of the operational data D . None of these

Last Answer : C. One of the defining aspects of a data warehouse, which is specially built around all the existing applications of the operational data

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Last Answer : Google it. \ http://www.sciencedirect.com/science/article/pii/S0029801814001838

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Description : Is "Polar Vortex" a new term to stoke up weather hysteria?

Last Answer : 20 years from now it will be called a “Solar Ice Stream”.

Explain the difference between vortex friction and vortex friction ?

Description : Explain the difference between vortex friction and vortex friction ?

Last Answer : The friction that occurs when an object tries to slip or rub on the surface of another object, that is, when it moves, and the friction that acts against the motion when an object rolls ... to cyclic friction. Undoubtedly, the value of rotational friction is much lower than that of bismuth friction.

Is the vortex on the same side everywhere in the world?

Last Answer : we learned that at school, but I wasn't anywhere to verify it, so I can only believe it ...

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Description : The current spell of cold wave in the US has been a fall out of the : (1) polar vortex (2) biodiversity and habitats (3) climate and energy (4) political administration

Last Answer : (1) polar vortex Explanation: The 2013-14 North American cold wave was caused by southward shifts of the North Polar Vortex. On December 1, 2013, the weakening of the polar vortex led to the beginning of an abnormally cold trend in the Eastern and Central United States.

During agitation of liquids, the (A) Froude number is independent for the curves between power number and Reynolds number in baffled system (B) Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller (C) Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number (D) All (A), (B) and (C)

Description : During agitation of liquids, the (A) Froude number is independent for the curves between power number and Reynolds number in baffled system (B) Power number becomes independent of impellers Reynolds number at high Reynolds number, ... , the centre vortex) on the power number (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation (B) Cavitation may be caused due to boiling of liquid by decreasing the pressure resulting in formation & collapse of vapor cavities (C) Cavitation begins at higher static pressure and lower velocity in larger diameter pipelines resulting in audible noise(D) Large scale cavitation cannot damage pipeline, restrict fluid flow anddamage steam turbine blades

Description : Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation ... (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Last Answer : (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Baffles in mixing tanks are provided to (A) Reduce swirling and vortex formation (B) Increase the structural strength of the tank (C) Aid in rotational flow (D) None of these

Description : Baffles in mixing tanks are provided to (A) Reduce swirling and vortex formation (B) Increase the structural strength of the tank (C) Aid in rotational flow (D) None of these

Last Answer : (A) Reduce swirling and vortex formation

Pick out the correct statement. (A) A forced vortex occurs when fluid rotates as a solid about an axis (B) In laminar flow, Newton's law of viscosity does not apply (C) A free vortex occurs, when fluid rotates as a solid (D) In turbulent flow, there are neither cross-currents nor eddies

Description : Pick out the correct statement. (A) A forced vortex occurs when fluid rotates as a solid about an axis (B) In laminar flow, Newton's law of viscosity does not apply (C) A free vortex occurs, when fluid rotates as a solid (D) In turbulent flow, there are neither cross-currents nor eddies

Last Answer : (A) A forced vortex occurs when fluid rotates as a solid about an axis

Froude number is not a factor (A) For Reynolds number greater than 300 (B) When there is no vortex formation (C) For unbaffled tank (D) None of these

Description : Froude number is not a factor (A) For Reynolds number greater than 300 (B) When there is no vortex formation (C) For unbaffled tank (D) None of these

Last Answer : (B) When there is no vortex formation

In a free vortex, the (A) Velocity changes linearly with radial distance (B) Flow is necessarily rotational (C) Radial component of velocity is same everywhere (D) Stream lines are not circular

Description : In a free vortex, the (A) Velocity changes linearly with radial distance (B) Flow is necessarily rotational (C) Radial component of velocity is same everywhere (D) Stream lines are not circular

Last Answer : (A) Velocity changes linearly with radial distance

The flow of water through the hole in the bottom of a wash basin is an example of (A) Steady flow (B) Uniform flow (C) Free vortex (D) Forced vortex

Description : The flow of water through the hole in the bottom of a wash basin is an example of (A) Steady flow (B) Uniform flow (C) Free vortex (D) Forced vortex

Last Answer : Answer: Option C

Flow occurring in a pipeline when a valve is being opened is (A) Steady (B) Unsteady (C) Laminar (D) Vortex

Description : Flow occurring in a pipeline when a valve is being opened is (A) Steady (B) Unsteady (C) Laminar (D) Vortex

Last Answer : Answer: Option B

In a free vortex motion, the radial component of velocity everywhere is (A) Maximum (B) Minimum(C) Zero (D) Nonzero and finite

Description : In a free vortex motion, the radial component of velocity everywhere is (A) Maximum (B) Minimum (C) Zero (D) Nonzero and finite

Last Answer : Answer: Option C

The tangential velocity of the water element having a free vortex is (A) Directly proportional to its distance from the centre (B) Inversely proportional to its distance from the centre (C) Directly proportional to its (distance)2 from the centre (D) Inversely proportional to its (distance)2 from the centre

Description : The tangential velocity of the water element having a free vortex is (A) Directly proportional to its distance from the centre (B) Inversely proportional to its distance from the centre (C) Directly ... (distance)2 from the centre (D) Inversely proportional to its (distance)2 from the centre

Last Answer : Answer: Option B

When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

Description : When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as (A) Steady flow (B) Turbulent flow (C) Vortex flow

Last Answer : Answer: Option C

In a forced vortex, the velocity of flow everywhere within the fluid is (A) Maximum (B) Minimum (C) Zero (D) Nonzero finite

Description : In a forced vortex, the velocity of flow everywhere within the fluid is (A) Maximum (B) Minimum (C) Zero (D) Nonzero finite

Last Answer : Answer: Option D

What Is Remote Mount With Mta Option? (in Case Of Dual Sensor Vortex Flowmeter, Rosemount Has Written In Its Catalog Drawings)?

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Nozzle consists of components a) Washer b) Vortex plate c) Strainer d) All of the above

Description : Nozzle consists of components a) Washer b) Vortex plate c) Strainer d) All of the above

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Singing of telephone wires in the wind occurs due to : (a) Vibrations caused by birds as they sit on or get off, the wires (b) Tensioning at the ends (c) Magnus effect (d) Generation of Karman Vortex street

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Last Answer : (d) Generation of Karman Vortex street

Under what circumstances are vortex flowmeters the most accurate?

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Which of the following conditions is worst with regard to wake vortex turbulence? a. Lights winds near the surface b. Strong winds near the surface c. Marked vertical wind shear d. Marked atmospheric turbulence near the ground

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List the various equipment’s used for liquid mixing and explain how vortex formation can be avoided in liquid mixing.

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