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Nady [450]
2 years ago
10

Based upon the information you have learned throughout this module on blood spatter analysis, do you feel that analyzing blood s

patter is the most reliable way to gain information about a particular crime scene? Do you think that analyzing the blood spatter gives you enough information to be able to charge someone with the possible crime? Conduct your own research on this as well and support your answer with a real-life case where blood spatter analysis was used. Include a copy of the URL to the article/site you found the real-life case example.
Physics
1 answer:
kompoz [17]2 years ago
6 0

Answer:

I do not think that it is the most reliable way to gain information since it is very hard to do and can be easily messed up. No, I don't think you can charge someone on only evidence from blood spatter, but if there was additional evidence I think that this would definitely help with the case but not on its own, since it doesn’t give you physical evidence about the suspect.

Explanation:

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5. An acrobat, starting from rest, swings freely on a trapeze of
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The energy conservation and trigonometry we can find the results for the questions about the movement of the acrobat are;

     a) The maximum speed is v = 4.89 m / s

     b) The maximum height is h = 1.22 m

The energy conservation is one of the most fundamental principles of physics, stable that if there are no friction forces the mechanistic energy remains constant. Mechanical energy is the sum of the kinetic energy plus the potential energies.

               Em = K + U

Let's write the energy in two points.

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Final point. Lower part of the movement

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            m g h = ½ m v²

            v² = 2 gh

Let's use trigonometry to find the height, see attached.

         h = L - L cos θ

         h = L (1- cos θ)

They indicate that the initial angle is tea = 48º and the length is L = 3.7 m, let's calculate.

         h = 3.7 (1- cos 48)

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this  is the maximum height of the movement.

Let's calculate the velocity.  

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     a) The maximum speed is v = 4.89 m / s

     b) The maximum height is h = 1.22 m

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