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BlackZzzverrR [31]
3 years ago
5

Which of these would have particles with the highest kinetic energy? Ice Water Water Vapor

Physics
2 answers:
umka2103 [35]3 years ago
7 0
<h2>Answer:</h2>

The correct answer is water vapor.

<h3>Explanation:</h3>
  • In evaporation of water, particles with high kinetic energy tend to leave the water surface.
  • Because high kinetic energy molecules move faster than others breaking bonds with other molecules.
  • And escape the water to air in form of vapors.
  • While the ice water contain molecules with low kinetic energy.

miv72 [106K]3 years ago
6 0

Answer: Water Vapor

Explanation:

Kinetic energy is the energy possessed by an object by virtue of its motion.

Solid state : In this state, the molecules are arranged in regular and repeating pattern. The molecules are closely packed that means they are fixed and have low kinetic energy.

For example : Ice

Liquid state : In this state, the molecules are present in random and irregular pattern. The molecules are closely packed but they can move from one place to another and hence have low kinetic energy.

For example : water

Gaseous state : In this state, the molecules are present in irregular pattern. The molecules are not closely packed and they can move freely from one place to another and spread out and thus have high kinetic energy.

For example : water vapor

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A bus accelerates to 60 m/s to the east in 10 s. What is the buses acceleration? 2. A car traveling at 10.0 m/s to the west acce
professor190 [17]

Answers:

1) a=6\frac{m}{s^{2}}

2) t=8s

Explanation:

1) Acceleration a is defined as the variation of Velocity V in time t :  

a=\frac{V}{t}  (1)

A body also has acceleration when it changes its direction.

In this case we have a bus with a velocity of 60m/s to the east, that accelerates in a time 10s. So, we have to find the bus's acceleration:

a=\frac{60m/s}{10s}  (2)

a=6m/s^{2}  (3)  This is the bus's accelerration

2) Now we have a car that accelerates 2m/s^{2}  to the west in order to reach a speed of 16m/s in the same direction, and we have to find the time t it takes to the car to reach that velocity.

Therefore we have to find  t from (1):

t=\frac{V}{a}  (4)

t=\frac{16m/s}{2m/s^{2}}  (5)

Finally:

t=8s  (6)

3 0
3 years ago
A vector has a magnitude of 30m at an angle of 225 degrees with respect to the positive x-axis and has a magnitude of 13m.what a
Aneli [31]

Answer:

I'm pretty sure this is not a complete question. My guess is that you are trying to add/subtract vectors. Vectors have both magnitude and direction, so vector A is pretty clear, but a magnitude of 13 (i'm guessing a resultant) without a direction is weird.

IF 13 is the magnitude of the resultant, vector B added to vector A could have any magnitude 17 ≤ B ≤ 43

It could have any direction of

θ = (225 - 180) ± arcsin(13/30)

θ = 45 ± 25.679...

70.679 ≤ θ ≤ 19.321

components of vector B would be

Bx = |B|cosθ

By = |B|sinθ

3 0
2 years ago
A boy and a girl are on a spinning merry-go-round. The boy is at a radial distance of 1.2 m from the central axis; the girl is a
Licemer1 [7]

Answer:

E) True. The girl has a larger tangential acceleration than the boy.

Explanation:

In this exercise they do not ask us to say which statement is correct, for this we propose the solution to the problem.

Angular and linear quantities are related

          v = w r

          a = α r

the boy's radius is r₁ = 1.2m the girl's radius is r₂ = 1.8m

as the merry-go-round rotates at a constant angular velocity this is the same for both, but the tangential velocity is different

          v₁ = w 1,2 (boy)

          v₂ = w 1.8 (girl)

whereby

          v₂> v₁

reviewing the claims we have

          a₁ = α 1,2

          a₂ = α 1.8

          a₂> a₁

A) False. Tangential velocity is different from zero

B) False angular acceleration is the same for both

C) False. It is the opposite, according to the previous analysis

D) False. Angular acceleration is equal

E) True. You agree with the analysis above,

8 0
3 years ago
An object initially at rest experiences an acceleration of 9.8 m/s2. How much time will it take to achieve a velocity of 58 m/s?
frez [133]
5.91(approx) seconds just divide velocity by acceleration
4 0
3 years ago
The crest of one wave with an amplitude of 4 m meets up with the crest of a second
trapecia [35]

Answer:

Constructive

Explanation:

3 0
3 years ago
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