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4 years ago

(PLZ HELP ME ON THIS!!) If you put magnets together and allow them to arrange themselves, how will the poles be aligned?

Chemistry

1 answer:

Angelina_Jolie [31]4 years ago

7 0

C. north to south because opposite feilds attract each other.

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Arrange ZN HG CU AU metals in order of decreasing activity with the most active first

Andrej [43]

AU ZN CU HG

Explanation:

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3 years ago

State the law of moment of force.

Levart [38]

Explanation:

when in equilibrium condition the total sum of anti clockwise moment is equal to the sum of clock wise moment

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4 years ago

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Which two factors are used to calculate the kinetic energy of an object?

muminat

Answer:

Mass and Velocity

Explanation:

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3 years ago

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A can of coke contains 25 mL of carbon dioxide gas at 100kPa. If you take it on a hike up Mount Everest and the pressure decreas

Mazyrski [523]

Answer:

50 mL

Explanation:

We can solve this problem by using Boyle's Law, which states that:

"For a fixed mass of an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"

Mathematically:

$p\propto \frac{1}{V}$

where

p is the pressure of the gas

V is the volume of the gas

The equation can be rewritten as

$p_1 V_1 = p_2 V_2$

where in this problem:

$p_1 = 100 kPa$ is the initial pressure of the gas in the coke

$V_1=25 mL$ is the initial volume

$p_2=50 kPa$ is the final pressure

Solving for V2, we find the final volume:

$V_2=\frac{p_1 V_1}{p_2}=\frac{(100)(25)}{50}=50 mL$

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4 years ago

Describe the process of making the four major macromolecules.

dybincka [34]

Answer:

<em>Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules—large molecules necessary for life that are built from smaller organic molecules. Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.</em>

Explanation:

Have a great day!

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3 years ago

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