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SSSSS [86.1K]
3 years ago
14

What happens during evaporation? A liquid changes to a gas. A liquid changes to a solid. A gas changes to a liquid. A solid chan

ges to a liquid.
Physics
2 answers:
Dafna1 [17]3 years ago
8 0
A liquid changes to a gas
zimovet [89]3 years ago
6 0

Answer: Option (A) is the correct answer.

Explanation:

When a liquid state changes into gaseous state then this process is known as evaporation.

Since, molecules in a liquid are slightly away from each other as compared to molecules in a solid state. As molecules in a liquid state have more kinetic energy. But when heat is provided to a liquid then its molecules gain even more energy.

Thus, there occurs change in state from liquid to gas.

Hence, we can conclude that during evaporation a liquid changes to a gas.

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Answer:

H = 6 atoms

K= 2 atoms

O = 2 atoms

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2 years ago
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A certain wave motion has a frequency of 10 cycles / s and a wavelength of 3 m. so its propagation speed is
kodGreya [7K]
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3 years ago
Calculate the work done by a 50.0 N force on an object as it moves 9.00 m, if the force is oriented at an angle of 135° from the
aivan3 [116]

Answer:

Work done, W = -318.19 Joules

Explanation:

It is given that,

Force acting on the object, F = 50 N

Distance covered by the force, d = 9 m

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The work done by an object is equal to the product of force and distance traveled. It is equal to the dot product of force and the distance. Mathematically, it is given by :

W=Fd\ cos\theta

W=50\times 9\times \ cos(135)

W = -318.19 Joules

So, the work done by the force is 318.19 Joules. The work is done in opposite to the direction of motion. Hence, this is the required solution.

7 0
3 years ago
For a charged hollow metal sphere with total charge Q and radius R centered on the origin: (Determine whether each of the follow
Sloan [31]

Answer:

1. The field inside the shell is 0; TRUE

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3. only positive charges can be on the outside surface: FALSE (Negative can too!!!)

4. The field on the outside is perpendicular to the surface: TRUE

Explanation:

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3 years ago
A horizontal wire carries a current (conventional) straight toward you. From your point of view, the magnetic field caused by th
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Answer:

The magnetic field circles the wire in a counter-clockwise direction.

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