Drake is from which country

Fats are necessary to insulate your vital organs, store fat soluble vitamins and ____________ ____________. a Balance hormones b

seraphim [82]

Answer:

A. Balance hormones

Explanation:

Lipids help in the balancing of hormonal activities in the body. Some hormones are lipid soluble, which means that they can get dissolved in the lipids and can be transported throughout the body.

In addition to that, every cell in the body has a cell membrane which is made up of lipids. The sex hormone of humans are made up of cholesterol which is a lipid. This makes lipids play an important role in the balancing of hormones in the body, they are necessary in the production of hormones.

4 0

2 years ago

What attraction is in Cape town

Irina-Kira [14]

Explanation:

hi of of the above answer ofgg if you have any questions or else I can understand the purpose of the reason for the late reply I was late of

8 0

2 years ago

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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

5.02 $\frac{m}{s}$ = 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

What is the slope of this graph? (1.6) 13.0) The slope of the graph is

Maurinko [17]

I suppose you are saying that your points are (1,6) and (13,0), correct?

If so, to find slope use this equation:
(Y2 - Y1)/(X2 - X1)

Let’s input the missing values:
(0 - 6)/(13 - 1)

You should get:
-6/12

(Optional but reccomended) Simplify:
-1/2

4 0

2 years ago

Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into

Vikentia [17]

Answer:

solubility

Explanation:

• Solubility is the property of an object that makes it dissolve in a solvent, thus making it 'disappear'. This is what is happening in the question.

• Conductivity is the property of a material that allows it to conduct electricity, i.e., it allows electricity to pass through it.

6 0

1 year ago

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