What are the four factors that influence how fast the water will flow

1 answer:

8 0

Viscosity is a property of the water which opposes the relative motion between the two surfaces of the water that are moving at different velocities. In simple terms, viscosity of water means friction between the molecules of water. Factors affecting viscosity of water
1. TemperatureTemperature strongly influences a fluid’s viscosity. Viscosity decreases with increasing temperature and vice versa.
2. PressureNormally, an increase in pressure causes viscosity to increase.
3. ConcentrationConcentration has also direct relation with the viscosity.

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A slingshot is used to launch a stone horizontally from the top of a 20.0 meter cliff. The stone lands 36.0 meters away.

alisha [4.7K]

A)

It is a launch oblique, therefore the initial velocity in the vertical direction is zero. Space Hourly Equation in vertical, we have:

$S=S_{o}+v_{o}t+ \frac{at^2}{2} \\ 20= \frac{10t^2}{2} \\ t=2s$

Through Definition of Velocity, comes:

$\Delta v= \frac{\Delta S}{\Delta t} \\ v_x= \frac{36}{2} \\ \boxed {v_{x}=18m/s}$

B)

Using the Velocity Hourly Equation in vertical direction, we have:

$v_{y}=v_{y_{o}}+gt \\ v_{y}=10\times2 \\ \boxed {v_{y}=20m/s}$

The angle of impact is given by:

$cos(\theta) =\frac{v_{x}}{v_{y}} \\ cos(\theta) = \frac{18}{20} \\ cos(\theta) =0.9 \\ arccos(0.9)=\theta \\ \boxed {\theta \approx 25.84}$

If you notice any mistake in my english, please let me know, because i am not native.

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2 years ago

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Wilbur ran 1-kilometer. Then he ran 500 meters. How many meters did Wilbur run all together?

Blababa [14]

The answer is B 1,500 meters since 1 kilometer to meters is 1,000 and u add the 500

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3 years ago

If an equation is dimensionally correct is thar equation a right equation

Nady [450]

If an equation is dimensionally correct, it does not mean that the equation must be true. On the other hand, when the equation is dimensionally correct, the equation cannot be true. Dimensional analysis is a technique used to check whether a relationship is correct

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2 years ago

What concept or principle best explains why

andreev551 [17]

Answer:

d. Newton's first law

I hope this helps you

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Explanation:

mass=2.5kg

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3 years ago