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3 years ago

Why does soil composition differ all over the world

1 answer:

6 0

Answer:There are numerous reasons why soils differ regionally. The most influential factors include the parent material (the rocks from which the soil has come), the climate and terrain of the region, as well as the type of plant life and vegetation present, and, of course, human influence.

Explanation:hope this helps

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A bat emits a sound at a frequency of 3. 00 × 104 hz as it approaches a wall. The bat detects beats such that the frequency of t

OLga [1]

Taking into account the Doppler efect, the speed of the bat is closest to 5.02 $\frac{m}{s}$ .

The Doppler effect is defined as the apparent frequency change of a wave produced by the relative movement of the source with respect to its observer. In other words, this effect is the change in the perceived frequency of any wave motion when the sender and receiver, or observer, move relative to each other.

The following expression is considered the general case of the Doppler effect:

$f1=f\frac{v+-vR}{v+-vE}$

Where:

f1, f: Frequency perceived by the receiver and frequency emitted by the issuer respectively. Its unit of measurement in the International System (S.I.) is the hertz (Hz), which is the inverse unit of the second (1 Hz = 1 s⁻¹)
v: Velocity of propagation of the wave in the medium. It is constant and depends on the characteristics of the medium. In this case, the speed of sound in air is considered to be 340 m/s
vR, vE: Speed of the receiver and the sender respectively. Its unit of measure in the S.I. is the m/s
±, ∓:

We will use the + sign:

In the numerator if the receiver approaches the sender

In the denominator if the sender moves away from the receiver

We will use the sign -:

In the numerator if the receiver moves away from the emitter

In the denominator if the sender approaches the receiver

In this case, a bat emits a sound at a frequency of 3.00×10⁴ Hz= 30,000 Hz as it approaches a wall.

The bat detects beats such that the frequency of the echo is 900 hz higher than the frequency the bat is emitting.

So, you know:

f1= 30,000 Hz + 900 Hz= 30,900 Hz
f= 30,000 Hz
v= 340 m/s
vE=vR= vbat
Receiver approaches the sender

Replacing in the expression is considered the general case of the Doppler effect:

$30900 Hz=30000 Hz\frac{340 \frac{m}{s} +vbat}{340\frac{m}{s} -vbat}$

Solving:

$\frac{30900 Hz}{30000 Hz} =\frac{340 \frac{m}{s} +vbat}{340\frac{m}{s} -vbat}$

$1.03=\frac{340 \frac{m}{s} +vbat}{340\frac{m}{s} -vbat}$

1.03×( 340 $\frac{m}{s}$ -vbat)= 340 $\frac{m}{s}$ + vbat

1.03×340 $\frac{m}{s}$ - 1.03×vbat= 340 $\frac{m}{s}$ + vbat

350.2 $\frac{m}{s}$ - 1.03×vbat= 340 $\frac{m}{s}$ + vbat

350.2 $\frac{m}{s}$ - 340 $\frac{m}{s}$ = vbat + 1.03×vbat

10.2 $\frac{m}{s}$ = 2.03×vbat

10.2 $\frac{m}{s}$ ÷ 2.03 = vbat

In summary, the speed of the bat is closest to 5.02 $\frac{m}{s}$ .

Learn more about the Doppler effect:

6 0

2 years ago

Mga oras na iniluwal ng panahon kahulugan<br>

Mila [183]

Answer:

Ang panahon o kalagayan ng panahon ay ang paglalarawan sa kalagayan at katangiang pangkalikasan sa labas ng tahanan, gusali o anumang tirahan ng tao, hayop, halaman at iba pang mga nilalang, na ayon sa singaw ng kalawakan o ng atmospera ng daigdig. Tumutukoy ito sa kainitan, katuyuan, kalamigan, kabasaan, katahimikan, pagka-maaraw, pagkamahangin, o pagiging maulan sa isang pook, sa isang takdang oras, na maaaring magbago. Nararamdaman, naririnig, nakikita ng tao ang epekto ng panahon at maging ang pagbabago sa kalagayan nito. Nasusukat din ang panahon sa pamamagitan ng mga termometro, barometro, barograpo, sikrometro o higrometro, panukat ng hangin, anemometro, at mga panukat ng ulan. Depende rin ang taya ng panahon sa pagdating ng kapanahunan ng tag-init, taglamig, taglagas, tagsibol at tag-ulan.[1]

8 0

3 years ago

What is revealed in hamlet's second soliloquy? (check all that apply)

Valentin [98]

The second soliloquy reveals about the cowardice nature of Hamlet, as well as his plans of ending his life.

<h3>What is the theme of Hamlet's Second Soliloquy?</h3>

The second soliloquy of Hamlet has been revealing about the Hamlet’s inner thoughts. It starts with the Ghost's words to Hamlet asking him to remember it.

The inner soul of Hamlet in the soliloquy was confused with the thought of the inner thought of committing self harm. He did not consider it as a sin, and thereby wanted to end himself.

He was found depressed and cowardice as was affected by the death of his father and wanted to take a revenge of it as a duty.

Learn more about Hamlet's second soliloquy, here:

brainly.com/question/4465579

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6 0

2 years ago

Which phrase best describes a period on the periodic table?

dybincka [34]

The phrase which best describes a period on the periodic table is: a row of elements

Periodic table can be defined as an organized tabular arrangement of all the chemical elements arranged in order of increasing atomic number or number of protons, especially in rows.

On a related note, chemical elements with the same number of valence electrons are found in the same column of the periodic table.

In conclusion, the rows of a periodic table are referred to as periods while the columns are referred to as groups.

8 0

3 years ago

The probability that event b will occur, given that event a has occurred, is called its ____ probability.

Anna007 [38]

Answer:

mutually exclussive event

4 0

2 years ago