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Stels [109]
3 years ago
12

What element is used as a lining in aprons to protect people in x rays

Physics
1 answer:
strojnjashka [21]3 years ago
4 0

It's lead.  That's why the "apron" is so heavy.
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A man in a gym is holding an 8.0-kg weight at arm's length, a distance of 0.55 m from his shoulder joint. What is the torque abo
kipiarov [429]

Answer:

  \tau =37.34\ N m

Explanation:

given,

mass of the weight = 8 Kg

distance = 0.55 m

angle below horizontal = 30°

torque about shoulder

  \tau = \vec{r} \times \vec{F}

  \tau = r \times F cos \theta

  \tau = 0.55 \times 8 \times 9.8 \times cos 30^0

  \tau =37.34\ N m

torque about his shoulder join is equal to   \tau =37.34\ N m

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liubo4ka [24]

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Explanation:

never will have a measurable kinetic or potential energy status unless every single object is included in the calculation.

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sineoko [7]

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D I think I might be wrong its been a while scense I did something like that

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There is too much information given, it's hard to understand exactly which variables are important in this problem. 
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