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densk [106]
2 years ago
7

Intermolecular forces hold together which of the following?

Physics
2 answers:
gregori [183]2 years ago
6 0

Answer: The correct answer is molecules.

Explanation:

The intermolecular forces help to hold the molecules together. The force of attraction between the molecules is called intermolecular forces.

In the solid state, the molecules are tightly packed. There is a strong force of attraction between the molecules.

In the liquid state, the molecules are loosely packed in comparison to the solid state.

In the gaseous state, the molecules are more loosely in comparison to the liquid state. There is a weak force of attraction between the molecules.

Therefore, intermolecular forces hold together molecules.

andrezito [222]2 years ago
4 0
Intermolecular forces exist between the molecules of a substance.
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Infrared, visible light, then ultraviolet. Infrared is light that the human eye can not see and visible light is clearly light we can see then ultraviolet is has such a high frequency we can't see it either.
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In a closed system, a cart with a mass of 1.5 kg is rolling to the right at 1.4 m/s, while another cart of mass 1.0 kg is rollin
bija089 [108]

Answer: The correct option is (c.).

Explanation:

Mass of the cart A= 1.5 kg

Velocity of Cart A = 1.4 m/s towards right

Mass of the cart B = 1.0 kg

Velocity of Cart B = 1.4 m/s towards left

Momentum (P)= Mass × Velocity

P_A=1.5 kg\times 1.4 m/s=2.1 kg m/s

P_B=1.0 kg\times (-1.4m/s)=-1.4 kg m/s

(Negative sign means velocity of the cart is in opposite direction of that of the cart A)

Total Momentum =P_A+P_B=2.10 kg m/s-1.40 kg m/s=0.70 kg m/s

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7 0
3 years ago
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An advanced computer sends information to its various parts via infrared light pulses traveling through silicon fibers (n = 3.50
sasho [114]

Answer:

d = 6.43 cm

Explanation:

Given:

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Solution:

- The amount of time taken for information pulse to travel to memory unit:

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- We will use a basic relationship for distance traveled with respect to speed of light and time:

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- Where speed of light in silicon medium is given by:

                           V = c / n

- Hence,              d = c*t_m / n

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- The above is the distance for pulse going to and fro the memory and central unit. So the distance between the two is actually d / 2 = 6.43 cm

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Answer:

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