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spin [16.1K]
3 years ago
11

If you can simply pour sand into a cup then why is it not a liquid?

Physics
2 answers:
Naily [24]3 years ago
7 0
If you pour sand into a cup(empty) why would it change? 
If it had water in it then the sand <span>will sink to the bottom</span>, and not change forms.
sleet_krkn [62]3 years ago
6 0
If you, for example, poured it onto a wide cup with a volume equal to the total volume of the sand particles, the sand would not spread out to fill the container but would bunch up together in the middle.
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9.67\cdot 10^{-3}m/s^2

Explanation:

We can solve the problem by using the following suvat equation:

v^2-u^2=2as

where

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u is the initial velocity

a is the acceleration

s is the displacement

For the car in this problem:

u = 0 (it starts from rest)

v=50 km/h \cdot \frac{1000}{3600}=13.9 m/s is the final velocity

s = 10 km = 10 000 m is the displacement

Solving for a, we find:

a=\frac{v^2-u^2}{2s}=\frac{13.9^2}{2(10000)}=9.67\cdot 10^{-3}m/s^2

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