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Alexxandr [17]
3 years ago
6

Swings are usually made out of materials that do not conduct heat easily, so that children will not burn themselves as they play

Physics
1 answer:
Irina18 [472]3 years ago
8 0

the correct answer is D: all of these

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snow_tiger [21]

Answer:

Explanation:

Particles in all states of matter are in constant motion and this is very rapid at room temperature. A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. The particles in solids vibrate about fixed positions; even at very low temperatures.

Even with all of these state changes, it is important to remember that the substance stays the same—it is still water, which consists of two hydrogen atoms and one oxygen atom. Changing states of matter are only physical changes; the chemical properties of the matter stays the same regardless of its physical state!

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3 years ago
a spaceship is traveling at a speed of 15000 km/s from planet b toward planet a the spaceship sends out a signal with a waveleng
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Answer: 4nmeter

Explanation: The two observer a and b will measure the same wavelength since the speed of the space craft is very small compared with the speed of light c. That is

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4 0
3 years ago
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People believed they caused 911 not sure if that’s a answer choice but that’s my answer
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2 years ago
during conversion water to ice,forces of attraction between molecules. OPTIONS:1.)Decreases 2.)Increases 3.)Does not change 4.)C
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because water is loosely packed but when it is cold it becomes closely packed in order to form ice and thus the force attraction between them also increase.

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