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AlekseyPX
4 years ago
13

5. If you rub a balloon on a piece of fabric or carpeting and then hold it against your head, your hair can stand on end. Use wh

at you have learned in this lesson to explain why this happens.
Chemistry
1 answer:
juin [17]4 years ago
4 0
If you rub a balloon on a piece of fabric or carpet it will cause friction. If you rub a balloon on your head then because of friction your hair will fly around trying to attract to the balloon.

Hope this helped!

Also I know where you got this question from. You got it from the Assignment for 3.05. Am I right? I am in FLVS. are you too?
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What is the specific latent heat of fusion for a substance that takes 550 kJ to melt 14 kg at 262 K?
Ray Of Light [21]

Answer:

The answer is A

Explanation:

hope it helps

3 0
3 years ago
Prior to hosting an international soccer match, the local soccer club needs to replace the artifical turf on their field with gr
GuDViN [60]

Answer:

It will cost $68,620.5 to the club to add the grass turf to their field.

Explanation:

length of the field = l = 0.102 km = 0.102 × 1000 m

( 1km = 1000 m)

Width of the field w = 0.069 km = 0.069 × 1000 m

Area of the field , A= l × w

A=0.102\times 1000 m\times 0.069\times 1000 m=7,038 m^2

Cost of grass turfing = 9.75 \$/m^2

Cost of grass turfing on field of 7,038 m^2 :

=7,038 m^2\times 9.75 \$/m^2=\$68,620.5

It will cost $68,620.5 to the club to add the grass turf to their field.

4 0
3 years ago
Calculate the density of air at 100 Deg C and 1 bar abs. Use the Ideal Gas Law for your calculation and give answer in kg/m3. Us
madam [21]

Answer:

d=0.92\frac{kg}{m^{3}}

Explanation:

Using the Ideal Gas Law we have PV=nRT and the number of moles n could be expressed as n=\frac{m}{M}, where m is the mass and M is the molar mass.

Now, replacing the number of moles in the equation for the ideal gass law:

PV=\frac{m}{M}RT

If we pass the V to divide:

P=\frac{m}{V}\frac{RT}{M}

As the density is expressed as d=\frac{m}{V}, we have:

P=d\frac{RT}{M}

Solving for the density:

d=\frac{PM}{RT}

Then we need to convert the units to the S.I.:

T=100^{o}C+273.15

T=373.15K

P=1bar*\frac{0.98atm}{1bar}

P=0.98atm

M=28.9\frac{kg}{kmol}*\frac{1kmol}{1000mol}

M=0.0289\frac{kg}{mol}

Finally we replace the values:

d=\frac{(0.98atm)(0.0289\frac{kg}{mol})}{(0.082\frac{atm.L}{mol.K})(373.15K)}

d=9.2*10^{-4}\frac{kg}{L}

d=9.2*10^{-4}\frac{kg}{L}*\frac{1L}{0.001m^{3}}

d=0.92\frac{kg}{m^{3}}

5 0
3 years ago
Most earthquakes occur along fractures in the Earth's crust called faults. Most faults occur along the edges of A) continents. B
Ahat [919]
Hey there!

The answer is C. Tectonic plates, with the most famous of earthquakes being a plate called the "Ring of Fire"  


Hopes this Helps u :D
6 0
4 years ago
Read 2 more answers
Guys help me, please
Pepsi [2]

Answer:

radiation, conduction, convection, conduction

5 0
2 years ago
Read 2 more answers
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