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ch4aika [34]
3 years ago
15

Dalton was one of the first scientists to experimentally prove that

Physics
2 answers:
Andre45 [30]3 years ago
4 0
<span>c. the chemical and physical properties of an element correlate with its mass and size. 

All the other properties of an atom is associated with it's sub-atomic particles which described later by the scientists like Rutherford, Thompson & many more.

Hope this helps!</span>
katrin [286]3 years ago
3 0
The answer is c.


have a beautiful day
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Explanation: I just got it wrong :(

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Which element's atoms have the greatest average number of neutrons ?
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Write two different unit in which mass is measured.​
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A circus tightrope walker weighing 800 N is standing in the middle of a 15 meter long cable stretched between two posts. The cab
Lorico [155]

Answer:

T = 10010 N

Explanation:

To solve this problem we must use the translational equilibrium relation, let's set a reference frame

X axis

       Fₓ-Fₓ = 0

       Fₓ = Fₓ

whereby the horizontal components of the tension in the cable cancel

Y Axis  

        F_{y} + F_{y} - W =0

        2F_{y} = W

let's use trigonometry to find the angles

        tan θ = y / x

        θ = tan⁻¹ (0.30 / 0.50 L)

        θ = tan⁻¹ (0.30 / 0.50 15)

        θ = 2.29º

the components of stress are

         F_{y} = T sin θ

we substitute

       2 T sin θ = W

       T = W / 2sin θ

        T = \frac{ 800}{ 2sin 2.29}

        T = 10010 N

4 0
3 years ago
6. Most organizations have not banned the use of performing enhancing drugs.
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The answer is false
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