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gizmo_the_mogwai [7]
3 years ago
12

Which statement accurately describes what happens when water turns to ice in terms of energy? A.The water absorbs which causes c

hemical bonds to form changing water into ice.
B. The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a solid.
C. The water releases energy which causes the water molecules to have less kinetic and potential energy changing their configuration from liquid to solid.
D. The water releases energy which causes Chemical bonds to form changing water into ice
Physics
2 answers:
Marina CMI [18]3 years ago
6 0
The answer is D because water has less kinetic energy so the particles stay closer together
Liono4ka [1.6K]3 years ago
3 0

Answer: Option (D) is the correct answer.

Explanation:

When water turns into ice then energy is released by water molecules. As a result, there will be a decrease in kinetic energy of water molecules.

Therefore, potential energy increases and molecules come closer to each other. Hence, state of water changes from liquid to solid.

Thus, we can conclude that out of the given options, the statement water releases energy which causes chemical bonds to form changing water into ice accurately describes what happens when water turns to ice in terms of energy.

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Illustrate the law of conservation of energy by discussing the energy changes which occur when we draw a pendulum bob to one sid
agasfer [191]

Answer:

Energy transforms from Potential energy to (Kinetic Energy+heat+air drag) to potential energy. The bob comes to rest as it loses its energy due to the influence of the factors from the surroundings. The bob's energy is lost eventually and no, this happening is not a violation of the law of energy conservation.

Explanation:

  • For the illustration please refer to the figure attached herewith.
  • The bob is given some energy in the form of potential energy at the beginning and after it is released it swings back and forth interchanging energy between the potential to kinetic and keeping the total of its energy constant.
  • Only in the ideal conditions (no friction loss at the pivotal point, no air drag) the conditions described just above happen to exist. Else, where all the resistances are available: in the practical scenario, some energy gets dissipated to the environment via these factors making the total energy no longer a constant.
  • As a result of this, both its potential and kinetic energy also get reduced illustrating a gradual reduction of the height the bob would rise and the speed it would swing with.
  • The energy distribution, in this case, happens to be like this: Bob's total energy - lost energy = potential energy + kinetic energy.
  • This lost energy is not a miracle it is nature that some energy is transformed into some other form hence this happening is not a violation of the law of energy conservation.
  • In that case, energy is conserved between the bob and the environment.

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4 0
2 years ago
A rod of length L is pivoted about its left end and has a force F applied perpendicular to the other end. The force F is now rem
timurjin [86]

Answer:

F' = 4F

Explanation:

When force applied to the end of the rod in perpendicular direction then net torque on the rod is given as

\tau = L F sin90

\tau = LF

Now another force is applied at mid point of the rod at an angle of 30 degree with the rod

so new value of torque is given as

\tau = \frac{L}{2}F' sin\theta

LF = \frac{L}{2}F' sin30

LF = \frac{F'L}{4}

so we have

F' = 4F

3 0
3 years ago
Two charged particles held close together are released. As they move, the force on each particle increases. Therefore, the parti
AnnyKZ [126]
The answer would be B
4 0
3 years ago
Which of the following developmental milestones is likely achieved before a child turns two?
devlian [24]

while all children learn differently before they turn 2 they should be able to kick a ball or feel embarrased ,,i live with little ones everywhere!

6 0
3 years ago
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A 150m race is run on a 300m circular track of circumference. Runners start running from the north and turn west until reaching
Lapatulllka [165]

Answer:

95.5 m

Explanation:

The displacement is the position of the ending point relative to the starting point.

In this case, the magnitude of the displacement is the diameter of the circular track.

d = 300 m / π

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3 years ago
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