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3 years ago

Filtration is used to separate mixtures based on _____.

2 answers:

8 0

Based on particle size.
its where a solid is separated from a liquid. filter paper has tiny holes only allowing small molecules to pass

myrzilka [38]3 years ago

6 0

Answer:

particle size

Explanation:

Filtration is process of separating a mixture. The separation occurs by passing the mixture through a medium. Through this medium a component of the mixture will be blocked. This separates the components of the mixture. The component that has particle size less than the medium's particles passes through the rest does not pass through.

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A block of mass m=1kg sliding along a rough horizontal surface is traveling at a speed v0=2m/s when it strikes a massless spring

topjm [15]

Here we can use the work energy theorem

$W_f + W_s = K_f - K_i$

here we know that

$K_f = 0$

as it come to rest finally

$K_i = \frac{1}{2}mv_i^2$

$K_i = \frac{1}{2}\times 1\times 2^2$

$K_i = 2 J$

now work done by friction force will be given as

$W_f = - F_f \times d = -\mu mg d$

$W_f = - \mu(1)(9.8)(0.10) = - 0.98\mu$

Work done by spring force is given as

$W_s = \frac{1}{2}k(x_i^2 - x_f^2)$

$W_s = \frac{1}{2}(10)( 0 - 0.10^2)$

$W_s = -0.05 J$

so now plug in all data above

$- 0.05 - \mu(0.98) = 0 - 2$

$\mu = 1.99$

so above is the friction coefficient

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Answer:

Explanation:

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