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2 years ago

10

Which is necessary for visualizing latent stains of blood, semen, or urine at a crime scene

2 answers:

Ksivusya [100]2 years ago

6 0

Answer: B) ultraviolet light source

Explanation:

An ultraviolet light source is used to locate bodily fluids like semen, sweat, saliva and vaginal fluids at the scene of crime. These fluids emit their own natural fluorescence in the presence of ultraviolet light which are otherwise remain hidden and undetected at the scene of crime by naked eyes. This technique helps in their detection, collection and identification.

Slav-nsk [51]2 years ago

5 0

The correct answer is B) Ultraviolet light source. Hope this helps.

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What is the kinetic energy of a 3-kilogram bali that is rolling at 2 meters per second

alex41 [277]

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3 years ago

Read 2 more answers

011 10.0 points

Sedbober [7]

<h2>The temperature of the air is 66.8° C</h2>

Explanation:

From the Newton's velocity of sound relationship , the velocity of sound is directly proportional to the square root of temperature .

In this case The velocity of sound = frequency x wavelength

= 798 x 0.48 = 383 m/sec

Suppose the temperature at this time = T K

Thus 383 ∝ $\sqrt{T}$ I

The velocity of sound is 329 m/s at 273 K ( given )

Thus 329 ∝ $\sqrt{273}$ II

Dividing I by II , we have

$\frac{383}{329}$ = $\sqrt{\frac{T}{273} }$

or $\frac{T}{273}$ = 1.25

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3 years ago

A line graph usually reveals a relationship between which factors

SVEN [57.7K]

Answer:

variables on the horizontal and vertical axis (slope, outliers, +/- correlation, etc)

Explanation:

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3 years ago

If you were to mix 3 liters of 20 degrees celsius water with 4 liters of 30 degrees water at 7 liters of water what temperature

Debora [2.8K]

Lets say final temperature is @ celsius
3c(@-20)= 4c([email protected])
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3 years ago

Find the westward component of a resultant vector 85.42 unit, 23 degrees W of N

Sindrei [870]

Since the angle is West of North, therefore to find for the westward component (horizontal component) of the vector, we use the sin function:

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So the westward component (x) is:

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<span>x = 33.38 unit</span>

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3 years ago