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Alja [10]
3 years ago
14

In the lab, you looked at speed-time graphs to determine the acceleration of the cart for each of the three fan speeds

Chemistry
2 answers:
Bumek [7]3 years ago
8 0

Answer:

What was the acceleration of the cart with Low fan speed?  ⇒ 18.0 cm/s2

What was the acceleration of the cart with Medium fan speed?  ⇒ 24.0 cm/s2

What was the acceleration of the cart with High fan speed? 32.0cm/s2

Explanation:

GarryVolchara [31]3 years ago
3 0

Answer:

What was the acceleration of the cart with Low fan speed?  18.0 cm/s2  

What was the acceleration of the cart with Medium fan speed? 24.0 cm/s2  

What was the acceleration of the cart with High fan speed? 32.0cm/s2

Explanation:

took test

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3 years ago
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It takes 330 joules of energy to raise the temperature of 24.6 gbenzene from 21 degrees Celsius to 28.7 degrees Celsius at const
lilavasa [31]

Given :

Energy , E = 330 J .

Initial temperature , T_i=21^oC .

Final temperature , T_f=24.6^oC .

Mass of benzene , m = 24.6 g .

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The molar hear capacity of benzene at constant pressure .

Solution :

Molecular mass of benzene , M = 78 g/mol .

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n=\dfrac{24.6}{78} \ mol\\\\n=0.32 \ mol

Energy required is given by :

q=nC_p\Delta T\\\\330=0.32\times C_p\times (28.7-21)\\\\C_p=\dfrac{330}{0.32\times 7.7}\ J\ mol^{-1}^oC^{-1} \\\\C_p=133.9\ J\ mol^{-1}^oC^{-1}

Hence , this is the required solution .

8 0
2 years ago
a certain piece of copper wire is determined to have a mass of 2.0 0g per meter how many centimeters of the wire would be needed
harina [27]

The given question tells you that a certain piece of wire has a mass  = 2.0 g per meter

That means that if you consider a piece of wire that is 1 m in length, its mass will be equal to  2.00 g .

According to question,

Now, you know that

1 m = 100 cm

Mass of  2.00 g  of copper will correspond to a wire that is a 100 cm long.

This implies that  0.28 gof copper will correspond to a wire that is

0.28 g * 100 cm /  2.0 g = 14 cm long

Hence, 14 cm of the wire would be needed to provide 0.28 g of copper.

Properties of Copper :

High conductivity and ductility.

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To know more about Copper here:

brainly.com/question/19761029?referrer=searchResults

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Xelga [282]

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In comparison to the rock it intrudes, what is the relative age of a dike?
daser333 [38]
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