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nevsk [136]
3 years ago
14

To locate objects in their environments, bats in flight and porpoises under water both use ultrasound waves with frequencies tha

t are beyond human hearing. These animals produce an ultrasonic wave and then detect echoes from nearby objects in order to determine the location of the object Porpoise Bat If a porpoise and a bat both produce ultrasonic waves when they are 16 meters from an object, which animal would hear its echo first? The bat would hear its echo first because sound travels faster in air than in water. O The porpoise would hear its echo first because sound travels faster in water than in air. O The bat would hear its echo first because the frequency of sound waves is greater in air than in water 0 The porpoise would hear its echo first because the frequency of sound waves is greater in water than in air.​
Chemistry
1 answer:
Katarina [22]3 years ago
3 0

Answer: The porpoise would hear its echo first because sound travels faster in the water than in air.

Explanation:

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The organic compounds that are the starting materials for compounds like fats and amino acids are called
alisha [4.7K]

The answer is; acetyl-CoA

This organic compound is an intermediate of the TCA/Citric/Krebs cycle. To make fats, the coenzyme is carboxylated to manolyCoA. This becomes a precursor fo palmitate and other lipids in the body by the addition of more manolyCoA.

The coenzyme is also a precursor to the formation of alpha-ketoglutarate, another intermediate of the TCA cycle, which is also a precursor in the formation of proteins.


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3 years ago
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Q 1 : why are cylinders of oxygen used in hospitals?
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Answer:

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3 years ago
6 Select the correct answer. A substance is followed by the symbol (l) in a chemical equation. What does the symbol represent?
allsm [11]

Answer:

B. The substance is in the liquid state.

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The symbol (l)  in a chemical equation represents that the substance is in liquid state which is one of the physical states of a chemical substance.

4 0
3 years ago
PLSS HELP I'm really stuck!
ss7ja [257]

Answer:

The steps are explained below, the essential step is to find mass here, 120 g of NaOH.

Explanation:

In order to answer this question, we need to define molarity conceptually firstly to see what variables we need. According to the formula, molarity is equal to the ratio between moles and volume, while moles itself is a ratio between mass and molar mass. This means we have a formula for molarity involving mass, molar mass and volume:

c = \frac{n}{V} = \frac{m}{MV}

In order to prepare a 500.0 mL of stock solution of 6.0 M of NaOH, we then need to find the mass of NaOH dissolved in this solution using the equation above:

m = cMV = 6.0 M\cdot 39.997 g/mol\cdot 0.5000 L = 120 g

Now, since we have the mass of NaOH, we can describe the steps needed to prepare this solution:

  • measure 120 grams of solid NaOH;
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Our solution is prepared.

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4 years ago
Bubbling ammonia into a solution of bromic acid will produce what salt?
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<h3>✽ - - - - - - - - - - - - - - -  ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

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↬ ʜᴀɴɴᴀʜ ♡

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