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3 years ago

Name two examples where the cohesive force dominates over the adhesive force and vice versa

1 answer:

5 0

Attractive forces between molecules of the same type are called cohesive forces. ... Attractive forces between molecules of different types are called adhesive forces. Such forces cause liquid drops to cling to window panes, for example.

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Answer: 6.9x 107 in standard form is 69,000,000

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2 years ago

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olga_2 [115]

Answer:

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3 years ago

The United States, England, and Russia were members of the:

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Allied powers
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3 years ago

A tennis ball is thrown from a 25 m tall building with a zero initial velocity. At the same moment, another ball is thrown from

Nataly [62]

Answer:

The two balls meet in 1.47 sec.

Explanation:

Given that,

Height = 25 m

Initial velocity of ball= 0

Initial velocity of another ball = 17 m/s

We need to calculate the ball

Using equation of motion

$s=ut+\dfrac{1}{2}gt^2+h$

Where, u = initial velocity

h = height

g = acceleration due to gravity

Put the value in the equation

For first ball

$s_{1}=0-\dfrac{1}{2}gt^2+25$ ....(I)

For second ball

$s_{2}=17t-\dfrac{1}{2}gt^2+0$ ....(II)

From equation (I) and (II)

$-\dfrac{1}{2}gt^2+25=17t-\dfrac{1}{2}gt^2+0$

$t=\dfrac{25}{17}$

$t=1.47\ sec$

Hence, The two balls meet in 1.47 sec.

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3 years ago

A scale measures the weight of a light object to be 11.000 lbs ± 0.034 lbs. what is the uncertainty if this same scale is use to

Gre4nikov [31]

The uncertainty of the heavy object if the scale remains constant is 0.24 lbs.

<h3>What is uncertainty in measurement?</h3>

This is the error associated in an attempt measure the object accurately.

The percent uncertainty in measuring the light weight object is calculated as follows;

$= \frac{0.034}{11} \times 100\%\\\\= 0.309\%$

The uncertainty of the heavy object if the scale remains constant is calculated as follows;

$= \frac{0.309}{100} \times 78.0 \ lbs\\\\= 0.24 \ lbs$

Learn more about percent uncertainty here: brainly.com/question/5493941

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2 years ago

Name two examples where the cohesive force dominates over the adhesive force and vice versa​

Name two examples where the cohesive force dominates over the adhesive force and vice versa