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MrMuchimi
3 years ago
5

What is happening to the water molecules as it changes from ice to liquid water? *

Physics
1 answer:
g100num [7]3 years ago
7 0

Answer:

They are gaining energy, can move and slide past each other.

Explanation:

Because as ice melts, the molocules gain energy/heat which warm them up and are able to slide/move apart from each other.

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Question 11 (2 points)
____ [38]

Answer:

B

Explanation:

Power is defined as the work done per unit time

7 0
3 years ago
Why is the pendulum a good example of simple harmonic motion? Under what conditions the pendulum could not be used as a good exa
dsp73

Answer:

The motion of a simple pendulum is very close to Simple Harmonic Motion (SHM). SHM results whenever a restoring force is proportional to the displacement, a relationship often known as Hooke's Law when applied to springs. Where F is the restoring force, k is the spring constant, and x is the displacement.

where θ is the angle the pendulum makes with the vertical. For small angles, sin(θ)∼θ, which would then lead to simple harmonic motion. For large angles, this approximation no longer holds, and the motion is not considered to be simple harmonic motion.

3 0
2 years ago
Cars are safety tested to see how quickly they come to a stop under many conditions. The distance and time of one of these tests
stepladder [879]

Answer:Is C,0

Explanation:

5 0
3 years ago
Read 2 more answers
5.8 meters/second + 1.2 meters/second
Alex Ar [27]

Answer:7m/s

Explanation:

5.8+1.2

=7.

8 0
3 years ago
Read 2 more answers
A ball is thrown horizontally from the top of a building 14.9 m high. The ball strikes the ground at a point 107 m from the base
umka2103 [35]

Answer:

1) t=1.743 sec

2)Vo=61.388  m/sec

3)the x component of its velocity just be- fore it strikes the ground is the same as the  initial velocity of the ball that is=61.388  m/sec

4)Vf=17.08 m/s

Explanation:

1)From second equation of motion we get

h=Vit+(1/2)gt^2

here in case(a): Vi=0 m/s,h=14.9m,,put these values in above equation to find the time the ball is in motion

14.9=(0)*t+(1/2)(9.8)t^2

t^2=14.9/4.9

t^2=3.040 sec

t=1.743 sec

2) s=Vo*t

Putting values we get

107=Vo*1.743

Vo=61.388  m/sec

3)the x component of its velocity just be- fore it strikes the ground is the same as the  initial velocity of the ball that is=61.388  m/sec

4)From third equation of motion we know that

Vf^2-Vi^2=2gh

here Vi=0 m/s,h=14.9 m

Vf^2=Vi^2+2gh=0+2(9.8)(14.9)

Vf^2=292.04

Vf=17.08 m/s

8 0
3 years ago
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