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3 years ago

8

I NEEED HELP Write about the process of natural selection in your own words. Use and underline the terms adaptations, traits, di

versity, mutations, environment, population, and natural selection in your response. This should be in complete paragraph form!

2 answers:

BARSIC [14]3 years ago

8 0

Answer:

Bruhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Explanation:

Katen [24]3 years ago

5 0

Answer:

Hvb

Explanation:

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At a maximum level of loudness, the power output of a 75-piece orchestra radiated as sound is 72.0 W. What is the intensity of t

FrozenT [24]

Answer:

<em> The intensity would be 0.01432 W/</em> $m^{2}$ <em></em>

Explanation:

The sound intensity is the power that is transmitted by a sound wave per unit area.

Given that

Power output P of the 75-piece orchestra = 72.0 W

The listener's distance r = 20.0 m

The intensity of sound waves (I) can be obtained with the expression below;

I = P/A .............. 1

where P is the power

A is the area, in this case, at the distance r the sound is radiated through a sphere.

A = area of a sphere = 4π $r^{2}$

putting it into equation 1, the intensity would be;

I = P/ 4π $r^{2}$

Substituting our values we have;

I = 72.0 W / 4 π $20^{2}$ $m^{2}$

I = 0.01432 W/ $m^{2}$

Therefore the intensity would be 0.01432 W/ $m^{2}$

3 0

3 years ago

An airplane flies 250.0 km at 300 m/s. How long does this take?

givi [52]

Im not sure if this is physics or mathematics. but if 300 msec then per minute this will equal to 300 X 60 sec =18000 m per minute

3 0

3 years ago

Read 2 more answers

A driver would use the ____ to enter the express way

r-ruslan [8.4K]

Answer:

Tollway

Explanation:

7 0

4 years ago

A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.442 and t

fredd [130]

Answer:7.92 N

Explanation:

Given

mass of book $m=1.83\ kg$

coefficient of static friction $\mu _s=0.442$

coefficient of kinetic friction $\mu _k=0.240$

To move the book, one need to overcome the static friction

Static friction $F_s=\mu _sN$

$F_s=\mu _s\times 1.83\times 9.8$

$F_s=0.442\times 1.83\times 9.8$

$F_s=7.92\ N$

After overcoming the Static friction , Force needed to move the block is

$F_k=\mu _kN$

$F_k=0.240\times 1.83\times 9.8$

$F_k=4.30\ N$

8 0

3 years ago

Witch is least likely to break? explain?

Reptile [31]

Work Done = Force * Distance

This means the least work is exerted by the most distance, so the longer ones are less likely to break.

The shortest one will be the one that breaks easiest.

4 0

3 years ago