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Kryger [21]
3 years ago
8

Plz plz plz plz plz plz hlep me

Physics
1 answer:
Amanda [17]3 years ago
6 0

Answer:

decantation, distilling, freezing

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By means of a rope whose mass is negligible, two blocks are suspended over a pulley, as the drawing shows. The pulley can be tre
tankabanditka [31]

Answer:

Mass of the pull is 77 kg

Explanation:

Here we have for

Since  the rope moves along with pulley, we have

For the first block we have

T₁ - m₁g = -m₁a = -m₁g/4

T₁ =  3/4(m₁g) = 323.4 N

Similarly, as the acceleration of the second block is the same as the first block but in opposite direction, we have

T₂ - m₂g = m₂a = m₂g/4

T₂ =  5/4(m₂g) = 134.75 N

T₂r - T₁r = I·∝ = 0.5·M·r²(-α/r)

∴ M = -\frac{2}{a} (T_2-T_1)

M = -\frac{2}{2.45} (134.75-323.4) = 77 \, kg

Mass of the pull = 77 kg.

5 0
3 years ago
If we could easily create machines or systems with no friction, what could we use them for?
Alexus [3.1K]

Answer:

We could make a frictionless generator.

Explanation:

This would change life by making the cost for energy next to zero

3 0
2 years ago
NO LINKS!!!!!! Help its urgent, PLEASE HELP!!!!!!!!!!!!!!!!
Likurg_2 [28]

Answer:

I think ur answer would be B

Explanation:

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2 years ago
What are used for manufacturing paper along with chemical
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Dry-strength additives, or dry-strengthening agents, are chemicals that improve paper strength normal conditions. These improve the paper's compression strength, bursting strength, tensile breaking strength, and delamination resistance. Typical chemicals used include cationic starch and polyacrylamide derivatives.

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Why does pressure change with elevation and depth?
nasty-shy [4]
<span>the deeper you go the more pressure...that's for depth</span>
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2 years ago
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