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Crazy boy [7]
3 years ago
8

2.Which choice most accurately explains what happens to the bonds between atoms when water changes to steam, and what becomes of

the energy added during this phase change?
When water changes to steam bonds between molecules are created. After reaching the boiling point, energy is used to change bond strength and change the kinetic energy of the atoms.
When water changes to steam bonds between molecules break apart. After reaching the boiling point, energy is used to break bonds, but does not affect the kinetic energy of the atoms.
When water changes to steam bonds between molecules are created. After reaching the boiling point, energy is used to break bonds, but does not affect the kinetic energy of the atoms.
When water changes to steam bonds between molecules break apart. After reaching the boiling point, energy is used to change bond strength and change the kinetic energy of the atoms.
Physics
2 answers:
erastova [34]3 years ago
6 0

Answer:

Explanation:

The conversion of water into steam involves various factors and changes.

When heat is applied to water, the bond between the molecules start to loosen up and molecules starts separating hence it from changes from liquid to gas or steam.

At this time molecules have greater kinetic energy which is given to them in form of heat. Hence apart from all options given, D is the correct one which states that :

"When water changes to steam bonds between molecules break apart. After reaching the boiling point, energy is used to change bond strength and change the kinetic energy of the atoms."

seraphim [82]3 years ago
5 0

Answer:

When water turns to steam,

D) the water absorbs energy which causes the water molecules to have more kinetic and potential energy changing their configuration from a liquid to a gas.

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Luba_88 [7]

Answer:

40 s

Explanation:

After 10 seconds, the first skater would have a 8m/s * 10s = 80 m head start

Let t be the number of seconds after the second skater starts will the second skater overtake the first skater

The distance traveled by the first skater after t seconds is

s_1 = v_1t = 8t

Similarly the distance traveled by the 2nd skater after t seconds is

s_2 = v_2t = 10t

Since the 2nd skater catches up to the 1st one after 80 m behind, the distance traveled by the 2nd one must be 80m greater than the distance of the 1st skater

s_2 = s_1 + 80

We can substitute s_1 = 8t, s_2 = 10t

10t = 8t + 80

2t = 80

t = 80 / 2 = 40 s

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A pebble is thrown into the air with a velocity of 19/m at an angle of 36 with respect to the horizontal.
kow [346]

Answer:

The maximum height the pebble reaches is approximately;

A. 6.4 m

Explanation:

The question is with regards to projectile motion of an object

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