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VladimirAG [237]
3 years ago
12

What is required to bring about phase change?

Physics
2 answers:
aliina [53]3 years ago
8 0
There must be an increase or decrease in temperature 
Sauron [17]3 years ago
4 0
To change of phase from gaseous to liquid.....The amount of energy required to change a unit mass of a subtance from solid to liquid (and vice versa)
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13.2.2 7+6 - 9(-2)+(-3)​
aniked [119]

Answer:

34.27 is the answer

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3 years ago
Why do some scientists not use controlled experiments?
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7 0
4 years ago
Future space stations will create an artificial gravity by rotating. Consider a cylindrical space station 100 m diameter rotatin
Zielflug [23.3K]

Given Information:

Diameter = d = 100 m

Required Information:

Period = T = ?

Answer:

Period = T = 14.2 seconds

Explanation:

We know that a station revolving  at an angular velocity ω,  have an  acceleration given by

α = ω²r

Where ω is angular velocity and r is the radius of cylindrical space station.

Normal gravity means α = g = 9.8 m/s²

ω² = α/r

ω = √(α/r)

The radius is given by

r = d/2

r = 100/2

r = 50 m

ω = √(9.8/50)

ω = 0.4427 rad/sec

We also know that

ω = 2πf

f = ω/2π

f = 0.4427/2π

f = 0.0704 rev/sec

Finally time period is given by

T = 1/f

T = 1/0.0704

T = 14.2  sec

Therefore, the rotation period is 14.2 seconds.

3 0
4 years ago
Consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm. A tensile force of 1000 N produc
Dimas [21]

Answer:

1.7 × 10^11 Pa

Explanation:

Please see the attachments below

3 0
3 years ago
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