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2 years ago

5

CAN SOMEONE PLS HELP ME ILL GIVE YOU BRAINLIEST

2 answers:

-Dominant- [34]2 years ago

8 0

Mass of the are is 2100 kg

RideAnS [48]2 years ago

5 0

Step by step explanation is here!!!

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what occurs when a swimmer pushes through the water to swim answers are (A) the water exerts a reaction force on the swimmer (B)

miv72 [106K]

When a swimmer pushes through water to swim they are propelled forward because of the water resistance against the hand and feet. It's A. The water doesn't automatically push the swimmer forward. It releases a reaction after the swimmer pushes through the water.

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2 years ago

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A cup of coffee is considered a Blank Space __________.

Sauron [17]

When you brew a coffee you're creating a Solution.

Tiny particles from coffee grounds, or solutes, are dissolved in water, the solvent.

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2 years ago

Which of the following materials is attracted to a magnet?

Butoxors [25]

Answer:

A. aluminum

Explanation:

because it's metal

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1 year ago

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What is the volume V of a sample of 4.00 mol of copper? The atomic mass of copper (Cu) is 63.5 g/mol, and the density of copper

rusak2 [61]

Answer : The volume of a sample of 4.00 mol of copper is $28.5cm^3$

Explanation :

First we have to calculate the mass of copper.

$\text{ Mass of copper}=\text{ Moles of copper}\times \text{ Molar mass of copper}$

$\text{ Mass of copper}=(4.00moles)\times (63.5g/mole)=254g$

Now we have to calculate the volume of copper.

Formula used :

$Density=\frac{Mass}{Volume}$

Now put all the given values in this formula, we get:

$8.92\times 10^3kg/m^3=\frac{254g}{Volume}$

$Volume=\frac{254g}{8.92\times 10^3kg/m^3}=2.85\times 10^{-2}L=2.85\times 10^{-2}\times 10^3cm^3=28.5cm^3$

Conversion used :

$1kg/m^3=1g/L\\\\1L=10^3cm^3$

Therefore, the volume of a sample of 4.00 mol of copper is $28.5cm^3$

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2 years ago

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A ball is rolling down a hill. Wich action would slow the ball down?

Feliz [49]

Answer:

Friction Force

hope this helped :)

Explanation:

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1 year ago

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