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algol [13]
3 years ago
9

A phase change is an example of a (option 1) Nuclear Change (option 2) Physical change (option 3) chemical change (option 4) cov

alent change
Physics
2 answers:
masha68 [24]3 years ago
6 0
<span>A phase change is an example of a
  Physial change</span>
Sedbober [7]3 years ago
6 0
B.) <span>A phase change is an example of a "Physical Change"

Hope this helps!</span>
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If a person believes that dreams have hidden meaning he or she would agree with Freud's ideas about _ content
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4 0
3 years ago
What is the wavelength of a wave if the wave speed is 24 m/s and the frequency is 48 Hz?
Mice21 [21]

Answer:

Wavelength is 0.5

Explanation:

To work it out, you divide Wave speed by the Frequency (24÷48=0.5)

4 0
3 years ago
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Two identical 0.400 kg masses are pressed against opposite ends of a light spring of force constant 1.75 N/cm, compressing the s
nlexa [21]

Answer:

0.853 m/s

Explanation:

Total energy stored in the spring = Total kinetic energy of the masses.

1/2ke² = 1/2m'v².................... Equation 1

Where k = spring constant of the spring, e = extension, m' = total mass, v = speed of the masses.

make v the subject of the equation,

v = e[√(k/m')].................... Equation 2

Given: e = 39 cm = 0.39 m, m' = 0.4+0.4 = 0.8 kg, k = 1.75 N/cm = 175 N/m.

Substitute into equation 2

v = 0.39[√(1.75/0.8)

v = 0.39[2.1875]

v = 0.853 m/s

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7 0
3 years ago
A man does 500 j work pushing a car a distance of 2m how much force does he apply
olasank [31]

Answer: 250 N

Explanation:

Use equation for work

W=F*d

d=2m

W=500J

F=?

-----------------------

W=Fd

F=W/d

F=500J/2m

F=250N

6 0
3 years ago
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11111nata11111 [884]


Surface tension - My definition -

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6 0
3 years ago
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