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Alexus [3.1K]
3 years ago
5

Which of the following statements is true? The atmosphere is an example of a solution. In a glass of sugar water, sugar is the s

olvent. The individual substances in a mixture lose their original chemical properties. All of the above.
Physics
2 answers:
Juli2301 [7.4K]3 years ago
6 0
All of the above is the correct answer sir have a great day!
Lina20 [59]3 years ago
3 0

Answer : The true statement is, The atmosphere is an example of a solution.

Explanation :

Mixture : It is defined as the substance that is made by the combination of two or more different components.

Solution : It is a mixture in which the minor component (solute) is uniformly distributed within the major component (solvent).

Solute : It is the component which is present in smaller proportion and is solid for solid in liquid solution.

Solvent : It is the component which is present in larger proportion and is liquid for solid in liquid solution.

Homogeneous mixtures : It is defined as the mixtures that appears uniformly throughout the solution and the particle size or shapes are not different.

Heterogeneous mixtures : It is defined as the mixtures which appears non-uniformly throughout the solution and the particle size or shapes are also different.

  • The atmosphere is an example of a solution.

This statement is true because atmosphere is an example of heterogeneous mixtures which is a part of solution.

  • In a glass of sugar water, sugar is the solvent.

This statement is wrong because sugar is solute and water is solvent.

  • The individual substances in a mixture lose their original chemical properties.

This statement is wrong because the individual substances in a mixture retain their original chemical properties.

Hence, the true statement is, The atmosphere is an example of a solution.

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Answer:

The answer is v = \sqrt{2G\frac{M_s}{R^2}(R-r_s)}.

Explanation:

From the law of gravity,

F = G \frac{Mm}{r^2}

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the general expression for gravitational potential energy is

U = -G \frac{Mm}{r},

where G is the gravitational constant, M and m are the mass of the attracting bodies, and r is the distance between their centers. The negative sign is because the force approaches zero for large distances, and we choose the zero of gravitational potential energy at an infinite distance away.

However, as the mass of the Sun is much greater than the mass of the rock, the gravitational acceleration is defined as

g = -G \frac{M}{r^2},

(the negative sign indicates that the force is an attractive force), and the potential energy between the rock and the Sun is

U = g M_e R,

which is actually the total energy of the system, because the rock materializes stationary at this point (there is no radial kinetic energy).

When the rock hits the surface of the Sun, almost all potential energy is converted to kinetic energy, but not all because the Sun is not a puntual mass. So the potential energy converted to kinetic energy is

U_p = g M_e(R- r_s),

then, the kinetik energy when the rock hits the surface is

U_k =\frac{1}{2}M_e v^2 = g M_e(R- r_s),

so

v = \sqrt{2g(R-r_s)}

where g is the gravitational acceleration generated by the Sun at R,

g = G \frac{M_s}{R^2}.

8 0
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What us the formula of finding diameter
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Answer:

The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.

Explanation:

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Part a.
465 \,  \frac{m}{s} =(465 \times 10^{-3} \,  \frac{km}{s})*( 3600 \,  \frac{s}{h} ) = 1674 \,  \frac{km}{h}
Answer: 1674 km/h

Part b.
1674  \frac{km}{h} = (1674 \,  \frac{km}{h})*(24 \,  \frac{h}{day}  ) = 40176 \,  \frac{km}{day}
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Answer:

0.0667 m

Explanation:

λ = wavelength of light = 400 nm = 400 x 10⁻⁹ m

D = screen distance = 2.5 m

d = slit width = 15 x 10⁻⁶ m

n = order = 1

θ = angle = ?

Using the equation

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Sinθ = 26.67 x 10⁻³

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Using the equation for small angles

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26.67 x 10⁻³ = y/2.5

y = 0.0667 m

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