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3 years ago

Linda is a forensic scientist arriving at the crime scene. What must she do before she can examine the crime scene?

Physics

2 answers:

Bezzdna [24]3 years ago

7 0

Answer:

In the more scientific viewpoint, the most important thing that she must do is caring for her hygiene and put some plastic gloves in her hands.

This is because there are lots of particles that can be retained in the hands (dust, skin, etc), and when examining the scene, she may drop some of these particles, "contaminating" the scene in this way with information that only will affect the investigation.

So the most important thing is being prepared to not affect anything in the crime scene

pav-90 [236]3 years ago

3 0

Answer: Linda must first secure the crime scene.

Explanation:

Before examining the crime scene Linda must first secure the crime scene. By securing the crime scene bystanders will not be able to contaminate or hurt any evidence that could be used to help solve the case. This will also ensure the bystanders cannot hurt themselves on anything at the crime scene. This is necessary because evidence that is contaminated in any way can not be used in the case.

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Anettt [7]

Answer:

The radius is $r = 3.1905 \ m$

Explanation:

From the question we are told that

The distance beneath the liquid is $d = 2.70 \ m$

The refractive index of the liquid is $n_i = 1.31$

Now the critical value is mathematically represented as

$\theta = sin ^{-1} [\frac{1}{n_i} ]$

substituting values

$\theta = sin ^{-1} [\frac{1}{131} ]$

$\theta = 49.76^o$

Using SOHCAHTOA rule we have that

$tan \theta = \frac{ r}{d}$

=> $r = d * tan \theta$

substituting values

$r = 2.7 * tan (49.76)$

$r = 3.1905 \ m$

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Minchanka [31]

Answer:

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