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Nadusha1986 [10]
3 years ago
11

Mixtures occur when two or more materials are combined and each material keeps its own properties. All of the following are mixt

ures EXCEPT
A)
Salad


B)
Pizza


C)
Water


D)
Chocolate milk
Physics
2 answers:
Bess [88]3 years ago
8 0
The answer is C water

devlian [24]3 years ago
6 0

Answer: Option (C) is the correct answer.

Explanation:

When two or more substances combine together then they result in the formation of mixture.

Unlike chemical substances, mixtures can be easily separated through physical means.

For example, mixtures can be separated by filtration, distillation etc.

Therefore, out of the given options, water is not a mixture because in water hydrogen and oxygen atoms are chemically bonded together by sharing of electrons.

 

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I could only tell you if i knew what the figure looked like
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4 years ago
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A wave has a period of 2 seconds and a wavelength of 4 meters. Calculate its frequency and speed. Note: Recall that the frequenc
Angelina_Jolie [31]

Answer:

frequency = 0.5 Hz and speed = 2 m/s

Explanation:

Given that,

The period of a wave, T = 2 s

Wavelength, \lambda=4\ m

If f be the frequency. So,

f = 1/T

f=\dfrac{1}{2}\\\\f=0.5\ Hz

Speed of a wave is given by :

v=f\lambda\\\\v=0.5\times 4\\\\v=2\ m/s

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4 0
4 years ago
For an air bag to work, it has to inflate full of nitrogen incredibly fast-within to
Lunna [17]

5.8 moles of nitrogen gas are needed to pressurize the air bag.

<h3>What's the expression of Ideal gas equation?</h3>
  • Ideal gas equation is PV=nRT
  • P= pressure, V = volume, n= no. of moles of gas, R= universal gas constant, T = temperature of the gas

<h3>What's the no. of moles of nitrogen present in a 60L air bag at 2.37 atm pressure and 25°C temperature?</h3>
  • P= 2.37 atm, V = 60L, R= 0.0821 L-atm/mol-K, T = 25°C = 298K
  • n= PV/RT

= (2.37×60)/(0.0821×298)

= 5.8 moles

Thus, we can conclude that 5.8 moles of nitrogen gas are needed to pressurize the air bag.

Learn more about the ideal gas here:

brainly.com/question/20348074

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8 0
2 years ago
What are some other examples of scientific knowledge that must have resulted from indirect evidence?
n200080 [17]

Answer:

The atomic model, the structure of the solar system, and the theory of black holes are examples of models created using indirect evidence.

Explanation:

I have no explanation sorry.

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3 years ago
What force must the worker exert to get the box moving &amp; what force must the worker exert to accelerate the box at 0.1 meter
photoshop1234 [79]

Since static friction is the minimum force required to just start the motion of a stationary object.

Here if we need to start an object from rest then we required F = 700 N

So for the first part of the above problem Force will be F = 700 N

Now if the box is already moving then we will have to use kinetic friction force between box and floor

now we can write the equation of net force as

F - F_k = m*a

here

F_k = kinetic friction = 220 N

m = mass = 500 kg

a = acceleration = 0.1 m/s^2

now we will have

F - 220 = 500* 0.1

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3 0
3 years ago
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