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Ber [7]
3 years ago
8

A screw has 4 threads per centimeter and a circumference of 2 centimeters. The mechanical advantage of the screw is?

Chemistry
2 answers:
Anna71 [15]3 years ago
8 0

Answer:

Mechanical advantage = 8

Explanation:

It is given that,

A screw has 4 threads per centimeter.

The circumference of the screw, C = 2 cm = 0.02 m

The mechanical advantage of a screw is given by :

MA=\dfrac{circumference}{pitch}.............(1)

Pitch of a screw is defined as the number of threads per inch on the screw i.e.

Pitch = 1 / number of threads per inch or cm

or pitch = 1/4

MA=\dfrac{2}{1/4}

MA = 8

Hence, the mechanical advantage of the screw is 8.

sashaice [31]3 years ago
3 0
<span>The answer is 8. Hope this help!!!

</span>
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A 5.0 balloon containing nitrogen gas is cooled from 25 degrees to 5°C. What is the final volume of the balloon?
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How do protons determine element identity
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Determine the [H3O+] in a 0.265 M HClO solution. The Ka of HClO is 2.9 × 10-8.
dexar [7]

8.8 × 10-5 M is the  [H3O+] concentration in 0.265 M HClO solution.

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HClO is a weak acid and does not completely dissociate in water as ions.

the equation of dissociation can be written and ice table to be formed.

 HClO +H2O ⇒ ClO- + H3O+

I  0.265                0        0

C  -x                    +x     +x

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Now applying the equation of Ka, where Ka is given as 2.9 × 10-8.

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8 0
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Arte-miy333 [17]

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