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3 years ago

You have a mixture of substances with diifferent sized molecules. How could you seperate them?

Physics

2 answers:

laiz [17]3 years ago

4 0

Answer:

The correct answer would be to use a centerfuge.

Explanation:

A centerfuge seperates substances by density. it would pull the substance with the higher density to the bottom.

Trava [24]3 years ago

3 0

Distillation, Magnetism, Filtration, Crystallization, Extraction,

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What is one of the most noticeable effects of the moon on earth??

Pie

Well one of them is title waves...

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3 years ago

Using the work energy theorem. What is the velocity of a 850kg car after starting at rest when 13,000J of work is done to it.

Misha Larkins [42]

When the car starts moving it acquires kinetic energy.

For this problem the formula of kinetic energy is:

$\frac{1}{2}mv^2$

Where m is the mass of the car = 850kg, and v is the speed of the car.

If we consider insignificant the energy lost by friction with soil and air we can propose the following equation:

Applied energy = Kinetic energy acquired by the car.

$13000\ J = \frac{1}{2}mv^2\\\\13000\ J = \frac{1}{2}(850)v^2\\\\\frac{13000(2)}{850} = v^2\\\\v = \sqrt{\frac{13000(2)}{850}}\\\\v = 5.531 m/s$

The velocity is 5.531 m/s

3 0

3 years ago

Which would have a longer vector arrow?

Feliz [49]

Answer: d

Explanation:

Did you actually try to answer the question its obviously d they all have same miles per hour as 100 so there would be nothing different so it would be d.

5 0

3 years ago

The equations for calculating both the electric force and the gravitational force are above. Their equations are very similar. W

lbvjy [14]

A, B, and C are hilarious. D is correct.

Charges can be positive or negative, so a pair of charges can be alike or opposite. But so far, we've never seen a negative mass.

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2 years ago

You throw a 50.0g blob of clay directly at the wall with an initial velocity of -5.00 m/s i. The clay sticks to the wall, and th

Whitepunk [10]

Answer:0.25 kg-m/s

Explanation:

Given

mass of blob $m=50 gm$

initial velocity $u=-5 m/s\ \hat{i}$

time of collision $t=20 ms$

we know Impulse is equal to change in momentum

initial momentum $P_i=mu$

$P_i=50\times 10^{-3}\times (-5)=-0.25 kg-m/s$

Final momentum $P_f=50\times 10^{-3}v$

$P_f=0$ as final velocity is zero

Impulse $J=P_f-P_i$

$J=0-(-0.25)$

$J=0.25 kg-m/s$

5 0

3 years ago