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Alexxx [7]
3 years ago
7

Which of the following is true about Viscosity of liquids:

Physics
2 answers:
BARSIC [14]3 years ago
5 0

Answer:

A) Liquids with high viscosity do not flow as well as liquids with low viscosity.

Explanation:

Viscosity is the property of layer of fluids which will flow relative to each other.

As we know that when two layers are moving on each other then due to cohesive force between the molecules the layers do not move freely.

If the cohesive force is strong between the molecules then we can say that liquid is of high viscosity which means that liquid can not move easily.

So here the correct option is

A) Liquids with high viscosity do not flow as well as liquids with low viscosity.

high viscosity of liquid means strong force between the layers which means layers can not move easily with respect to each other

White raven [17]3 years ago
4 0
Viscosity of liquids is essentially the 'thickness' of the liquid. For instance, honey and water have different viscosities. Honey has a higher one and therefore, liquids with high viscosity do not flow as well as liquids with low viscosity (water).
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Two people push on a boulder to try to move it. The mass of the boulder is 825 kg. One person pushes north with a force of 64 N.
stira [4]

Answer:

0.09 m/s²

Explanation:

Acceleration: This can be defined as the rate of change of velocity.

The S.I unit of acceleration is m/s².

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Using Pythagoras Theory,

√(F₁²+F₂²) = ma................... Equation 1

Where F₁ = Force of the First person on the boulder, F₂ = Force of the Second person on the boulder, F' = resultant force acting on the boulder, m = mass of the boulder, a = acceleration of the boulder.

make a the subject of the equation

a = √(F₁²+F₂²) /m................ Equation 2

Given: m = 825 kg, F₁ = 64 N, F₂ = 38 N,

Substitute into equation 2

a = [√(64²+38²)]/825

a = {√(5540)}/825

a = 74.43/825

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