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3 years ago

What will most likely happen if a sound wave moves from the air through a solid?

2 answers:

7 0

<span>The wavelength of the associated sound will increase. This will be noticed by the sound having a lower tone. As the sound passes through the solid object, not only will it sound lower in tone, it will sound softer, evidenced by if a person closes a door to a room and listens to a sound played from inside.</span>

olga55 [171]3 years ago

4 0

Answer:

Speed of sound wave increase.

Explanation:

There are many factors on which the speed of the sound wave depend i.e. temperature, density etc.

It also depends on the type of medium i.e. either solid, liquid or gas. It is maximum in solid than liquid and gases. It is about 6420 m/s in aluminium, 6040 m/s in nickel. In air the speed of the sound is least.

Hence, as we move from the air through a soil, the speed of the sound increase.

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Justin mixed two clear liquids together during an experiment and made the following observations: The mixed liquids decreased in

kvasek [131]

Answer:

Explanation:

A chemical change occurred, and this caused the liquid’s physical properties to change.

when we read her experiment we can see that color changed to blue, it is because new products are formed. And the temperature cause this.

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2 years ago

Can someone help with this please?

Aleks04 [339]

I think the answer would be yes. if my math is correct 84,596 divided by 29 equals 2,917 sickles. 2,917 sickles is equal to 172 galleon. therefore he would have enough to buy the 70 galleon broomstick. hopefully i did this right and it helped!

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2 years ago

Draw relative enthalpy diagrams showing the relationship between the enthalpy ofhydration, lattice enthalpy, and the solvation e

madam [21]

Complete Question:

The complete question is on the first uploaded image

Answer:

The solution is on the second uploaded image

Explanation:

The explanation of the above solution is on the third uploaded image.

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3 years ago

If you change your workout from a

Westkost [7]

Answer:

HIIT workouts are anaerobic, and cardiovascular endurance workouts are usually aerobic, depending on how much you work out. If you changed speed and switched to a different workout immediately after what you did before, your heart rate would increase, and you would experience pain on the side of your abdominal. It can be because your body isn’t used to the change in speed and endurance.

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3 years ago

Given the unbalanced equation below, answer the following: Calculate the number of liters of 3.00 M lead (II) iodide solution pr

mr_godi [17]

The number of liters of 3.00 M lead (II) iodide : 0.277 L

<h3>Further explanation</h3>

Reaction(balanced)

Pb(NO₃)₂(aq) + 2KI(aq) → 2KNO₃(aq) + PbI₂(s)

moles of KI = 1.66

From the equation, mol ratio of KI : PbI₂ = 2 : 1, so mol PbI₂ :

$\tt \dfrac{1}{2}\times 1.66=0.83$

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large \boxed {\bold {M ~ = ~ \dfrac {n} {V}}}$

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

So the number of liters(V) of 3.00 M lead (II) iodide-PbI₂ (n=0.83, M=3):

$\tt V=\dfrac{n}{M}\\\\V=\dfrac{0.83}{3}\\\\V=0.277~L$

5 0

3 years ago