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aleksklad [387]
2 years ago
15

Does water not have anomalous expansion?​

Physics
2 answers:
sleet_krkn [62]2 years ago
6 0

Explanation:

The anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4o C to 0o C, and it becomes less dense. ... The density becomes less and less as it freezes because molecules of water normally form open crystal structures when in solid form.

CaHeK987 [17]2 years ago
5 0
No. Water does not have anomalous expansion
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atroni [7]

Answer:

It is 3 m/s² downward.

Explanation:

The mass of an object, m = 30 kg

Upward force, F = 200 N

Downward force, F' = -300 N

We need to find the magnitude and direction of its acceleration.

Net force = F+F'

= 200+(-300)

= -100 N

We know that,

Force, F = ma, a is acceleration of the object

a=\dfrac{F}{m}\\\\a=\dfrac{-100}{30}\\\\a=-3.33\ m/s^2\approx -3\ m/s^2

Hence, the acceleration is -3 m/s² and it is acting in the downward direction.

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2 years ago
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qwelly [4]

Answer:

Pretty sure it's B. Oblique Lighting

Explanation:

A. is clearly wrong, C. is also clearly wrong, D and E both have nothing to do with lighting, Oblique Lighting is defined as "using a light source positioned at a low angle. Oblique lighting is usually used to show detail by creating shadows on the surface of the evidence." Hope this helps.

6 0
3 years ago
If you had been traveling that fast and the light actually was yellow, what color would it have seemed to you?
dimulka [17.4K]

Answer:

c. red

Explanation:

4 0
3 years ago
As the frequency of a wave increases the wavelength.
zaharov [31]

Answer:

decreases

Explanation:

Remeber:

There is always inverse relation between frequency and wavelength.

So if one of them increases, other decreases and vice-versa.

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4 0
2 years ago
Read 2 more answers
The law of conservation of mass states that mass can never be created or destroyed, only changed. true or faulse
Aleksandr-060686 [28]

Answer:

true

Explanation:

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