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3 years ago

What is the most common injury caused by working with machines unsafely?

Engineering

2 answers:

VladimirAG [237]3 years ago

8 0

Answer:

heyooo!!!!!!

Burns and scarring.

hope this helps!!!!

Explanation:

Lena [83]3 years ago

6 0

Answer:

The most common injury caused by working with machinery are cuts and burns.

Explanation:

Many times when working with machinery there are certain risks of damage to the personnel who handle them, so it is correct to request protective equipment for workers.

For example, if the most common injuries are cuts and burns, workers are asked to wear gloves or any protective equipment that covers them to avoid these damages when handling materials.

Safety shoes, glasses, gloves, helmet, mask and hearing protectors are the most recommended for any work with machinery.

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3 years ago

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2 years ago

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What is the De Broglie wavelength of an electron under 150 V acceleration?

yanalaym [24]

Answer:

0.1 nm

Explanation

Potential deference of the electron is given as V =150 V

Mass of electron $m=9.1\times 10^{-31}$

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plank's constant h = $6.67\times 10^{-34}$

According to energy conservation $eV =\frac{1}{2}mv^2$

$v=\sqrt{\frac{2eV}{M}}=\sqrt{\frac{2\times 1.6\times 10^{-19}\times 150}{9.1\times 10^{-31}}}=7.2627\times 10^{-6}m/sec$

Now we know that De Broglie wavelength $\lambda =\frac{h}{mv}=\frac{6.67\times 10^{-34}}{9.1\times 10^{-31}\times 7.2627\times10^6 }=0.100\times 10^{-9}m=0.1nm$

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3 years ago

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