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3 years ago

What type of smoke screen provides a thick, vertical barrier between enemy and friendly troops?

1 answer:

5 0

The answer is a smoke curtain. It is a dense, vertical development of smoke. It is positioned between friendly and enemy positions to avert or damage enemy ground observation of friendly positions. Since the smoke curtain is not placed directly on friendly troops, it will not hinder friendly operations. Also, it activates in the event of a fire, on condition that a means of diverting smoke away from a preferred location or protecting an area from direct smoke infiltration.

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If you see a fossil fish in a museum that is labeled one of the earliest fish known, what era is it probably from?

Korvikt [17]

I think it is from the Paleozoic era

Hope this helps

3 0

3 years ago

Read 2 more answers

g If a person takes a prescribed dose of 10 milligrams of Valium, the amount of Valium in that person's bloodstream at any time

Elenna [48]

Answer:

a. 8.1 milligrams

b. 40.07 hours

c. 8.859 milligrams

Explanation:

If a person takes a prescribed dose of 10 milligrams of Valium, the amount of Valium in that person's bloodstream at any time can be modeled by

$A_{t}=10e^{-0.0173t}$

Where A(t) = amount of Valium remaining in the blood after t hours

t = time or duration after the drug is taken

a. we have to calculate the amount of drug remaining in the bloodstream after 12 hours

$A_{12}=10e^{-0.0173\times12}$

$A_{12}=10e^{-0.2076}$

= 10×0.81253

= 8.1 milligrams

b. In this part we have to calculate the time when A(t) = 5 milligrams

$5=10e^{-0.0173\timest}$

$\frac{5}{10}=e^{-0.0173t}$

0.5 = $e^{-0.0173t}$

Now we take natural log on both the sides of the equation.

ln(0.5) = ln( $e^{-0.0173t})$

-0.69314 = -0.0173t

t = $\frac{0.69314}{0.0173}$

t = 40.0658

≈ 40.07 hours

c. In this part we have to calculate the rate, by which amount of drug will decay in the bloodstream after 7 hours.

$A_{7}=10e^{-0.0173\times7}$

$A_{7}=10e^{-0.1211}$

= 10×0.8859

= 8.859 milligrams

6 0

3 years ago

What is not a protist genera that parasitizes humans?

UkoKoshka [18]

Answer:

<h2>Chalamydomonas.</h2>

Explanation:

Protists are those organisms that are unicellular and eukaryotic in nature. They are present in diverse forms and structures and show different types of characteristics/. There are many protists that are harmful to human beings and some other organism that causes certain diseases called parasitic protists such as protozoans, trichomonas and some other. There are some protists that are not parasitic in nature such as Chlamydomonas and some other. Protists have different types of the mode of nutrition that may be autotrophic, saprophytic and parasitic and some other.

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3 years ago

Which is a feature of a flatworm? radial symmetry round bodies thin bodies body segments

Naily [24]

Answer:

Thin bodies.. The keyword is flatworm.

Explanation:

Hope this helps!

6 0

3 years ago

When DNA and the proteins associated with it condensed, what is formed

klasskru [66]

When DNA and proteins are condensed together they form chromosomes, which are located in the nucleus of a cell.

7 0

3 years ago