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aalyn [17]
3 years ago
15

“Sound plays an important role in our lives”. Give two points in support of this statement.

Chemistry
2 answers:
katrin [286]3 years ago
4 0

Answer:

  • First job out of college was in an industrial manufacturing setting.  Was told by plant engineer to walk around, get used to normal sounds.  He stressed anything "abnormal" is <u>a noise more so than a sound. </u> Report abnormalilies to supervisor immediately!!  So essentially sounds are giving us warnings something is abnormal.
  • Sounds also provide feedback.  Say you are performing an experiment, requires boiling water to sanitize.  Start the burner under a vessel, go on about other preparations.  Sound of water boiling will trigger setting a timer for how long to let it boil.
  • Get off work, pleasant music, nature sounds can help us decompress from a stressful day on the job.

Hope some of these give you impetus to think of other bullet points, sounds good to me.  !!

Explanation:

masha68 [24]3 years ago
3 0
Sound can be used to alert us in emergencies. 2. Sound can also be used to help blind people navigate the world better. I’m sorry if these horrible but I tried lol
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HURRYYY!!!!<br> Convert 7.13 x 10^28 atoms of calcium (Ca) to moles of calcium.
puteri [66]

Answer:

<h2>118,438.5 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L}\\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{7.13 \times  {10}^{28} }{6.02 \times  {10}^{23} }  \\  = 118438.538...

We have the final answer as

<h3>118,438.5 moles</h3>

Hope this helps you

4 0
3 years ago
In the reaction 4AI+_O2 2AI2O3, what coefficient should be placed in front of the O2 to balance the reaction?
Olegator [25]

Answer: 3

Explanation: I took the k12 quiz

3 0
3 years ago
23. Which element is most likely to be malleable?<br> a. Bromine b. Radon c. Nickel d. Carbon
Aleksandr [31]
It’s c.nickel because it’s a transition metal
7 0
3 years ago
HELP Which of the following fractions can be used in the conversion of 32 m3 to the unit mm3?
poizon [28]
We know that each millimeter contains 10⁻³ meters. Writing this as a ratio:
1 mm : 10⁻³ m

We require a conversion from m³ to mm³, so we must take the cube of the ratio we have made:
1 mm³ = (10⁻³)³ m³

Therefore, the conversion used will be:
(1 mm / 10⁻³ m)³

When we multiply by this conversion, we will get:
32 m³ = 32 x 10⁹ mm³
7 0
3 years ago
A tank is filled with gasoline to a depth of exactly 2 feet. The tank is a cylinder resting horizontally on its side, with its c
inna [77]

Answer:

The volume of the gasoline in the tank is 18.85 cubic feet

Explanation:

The tank is a cylinder. The equation for calculating the cylinder volumen is πr²*h, r is radius and h is height. π is approximately 3.1416. So,  The tank is  resting horizontally on its side, its radius is 2 feet/2= 1 feet. h=a tank long= 6 feet.

With equation:

Vol gasoline=3.1416*1²*6=18.85 feet ³

I hope my answer helps you

6 0
3 years ago
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