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Contact [7]
3 years ago
8

Which method of separation would work on a homogeneous mixture salt water

Physics
2 answers:
Eddi Din [679]3 years ago
7 0

Answer:

Evaporation

Explanation:

Salt is very soluble in water. Hence in other to be able to recover salt from a homogeneous mixture of water and salt, the mixture is heated so that water molecules can evaporate leaving the salt behind in the evaporating dish.

Butoxors [25]3 years ago
5 0
To separate a mixture of salt and water, you can try first by using filter paper hen with the extra water part set it out to the window so that the salt water evaporates and only the salt is remaining.
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A truck covers 47.0 m in 8.60 s while smoothly slowing down to final speed of 2.30 m/s. (a) Find its original speed.
Kruka [31]

Explanation:

Given that,

Distance, s = 47 m

Time taken, t = 8.6 s

Final speed of the truck, v = 2.3 m/s

Let u is the initial speed of the truck and a is its acceleration such that :

a=\dfrac{v-u}{t}.............(1)

Now, the second equation of motion is :

s=ut+\dfrac{1}{2}at^2

Put the value of a in above equation as :

s=ut+\dfrac{1}{2}\times \dfrac{v-u}{t}\times t^2

s=\dfrac{t(u+v)}{2}

u=\dfrac{2s}{t}-v

u=\dfrac{2\times 47}{8.6}-2.3

u = 8.63 m/s

So, the original speed of the truck is 8.63 m/s. Hence, this is the required solution.

8 0
3 years ago
I need help with 1-7 ASAP
elena55 [62]

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3 years ago
The measure of a spring’s resistance to being compressed or stretched is the
larisa86 [58]

<u>Answer;</u>

<em>Spring constant </em>

<u>Explanation;</u>

The measure of a spring’s resistance to being compressed or stretched is the <u>spring constant</u>.

  • The symbol of spring constant is K, since it is a constant. From the Hooke's law,for a helical spring or any elastic material, the extension force is directly proportional to the extension provided the elastic limit is not exceeded.
  • Therefore; the spring constant = Force/extension. That is; K = F/e; where k is the spring constant, F is the extension force and e is the extension.
  • Spring constant depicts the resistance of the spring to compressional and stretching forces.
7 0
3 years ago
Read 2 more answers
A net force of 79 N causes a mass to accelerate at a rate of 3 m/s2. Determine the mass
zmey [24]
Force= mass x acceleration

79=mass(3)

m=79/3

m=26.3 kg
4 0
2 years ago
Compare skater's total energy at point A and at point E?(disregard the friction)
White raven [17]

Answer:

c

Explanation:

because I've had this question before and got it right

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3 years ago
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