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LenaWriter [7]
2 years ago
7

Which of the following statements is true regarding soundwaves?

Chemistry
1 answer:
Alexeev081 [22]2 years ago
3 0

Answer:  Soundwaves travel as longitudinal or transverse waves depending on the temperature of the medium.

Explanation: i think its C

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Two solids of identical mass, A and B, are analyzed using identical calorimeters. Each calorimeter contains the same amount of w
DIA [1.3K]

Answer:

Specific heat of solid A is greater than specific heat of solid B.

Explanation:

In the calorimeter, as the temperature is increasing, the vibrational kinetic energy will increase and this means that additional amount of energy will be needed to increase the temperature by the same value. Therefore, we can conclude that specific heat increases as temperature increases.

Now, we are told that the final temperature of solid A's calorimeter is higher than that of B.

This means from our definition earlier, Solid A will have a higher specific heat that solid B.

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2 years ago
How many grams are in 2.12 x 10-2 moles of calcium phosphate, Ca3(PO3)2?
Vladimir79 [104]

Answer:19.2

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2 years ago
An object in motion has what type of energy?
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Answer:

B) Kinetic

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8 0
3 years ago
Read 2 more answers
The molecular weight of potassium ferricyanide is 329.24 grams/mol. How would you make 1 liter of a 500mM potassium ferricyanide
True [87]

Answer:

w = 164.62 g

Explanation:

molarity of a solution is given as -

Molarity (M)  =  ( w / m ) / V ( in L)

where ,

m = molecular mass ,

w = given mass ,

V = volume of solution ,

From the question ,

M = 500 mM = 0.5 M

( since , 1 mM =  1 / 100 M)

As we know , the molecular mass of potassium ferricyanide = 329.24 g/ mol

V = vol.of solution = 1 L

w = ?

<u>To find the value of w , using the above formula , and putting the respected values , </u>

Molarity (M)  =  ( w / m ) / V ( in L)

0.5  =  ( w / 329.24 ) / 1 L

w = 164.62 g

6 0
3 years ago
Why all goals cannot be met in economics?
muminat
The in the very definition of 'economics' explains why. Since, economics is a  social science that studies human behaviour, is a relationship *BETWEEN* ends and scarce means..
<span>
'ends' that is goals, and "scarce means" referred to the resources. So that is the economic problem, that there are *unlimited* wants but scarce resources. So the answer to this question is just: All goals cannot be reached because there are unlimited "goals", and few/limited resources.</span>
4 0
3 years ago
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