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Simora [160]
2 years ago
13

In order to waken a sleeping child, the volume on an alarm clock is doubled. Under this new scenario, how much more energy will

be striking the child's ear drums each second?
Physics
1 answer:
Kamila [148]2 years ago
5 0

Answer:4 times more energy will be striking the childbearing

Explanation:

Because Volume is directly proportional to amplitude of sound. Energy is proportional to amplitude squared. If you triple the amplitude, you multiply the energy by 4

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The __________ on the left side of an equation must be balanced with the atoms on the right side of the equation.
zhannawk [14.2K]
Your answer would be total number of atoms! This is because when you have these equations which require total number of atoms. 
3 0
3 years ago
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Explanation:

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The atmosphere is held together by
Vera_Pavlovna [14]

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D. gravity

Explanation:

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3 years ago
Explore the role of friction when creating safety ramps and escalators. "Why is it important for people and object to move slowl
faust18 [17]

The role of friction is of great importance when creating safety ramps and escalators because with the help of friction things move.

<h3>Why is it important to move objects slowly on ramps and escalator?</h3>

It is important to move objects slowly on ramps and escalator because the ramps and escalator moves object in the opposite direction of gravity. If we did not move objects slowly, then the objects or a person get damaged.

So we can conclude that the role of friction is of great importance when creating safety ramps and escalators because with the help of friction things move.

Learn more about friction here: brainly.com/question/24338873#SPJ1

3 0
2 years ago
An ideal gas occupies 0.4 m3 at an absolute pressure of 500 kPa. What is the absolute pressure if the volume changes to 0.9 m3 a
sveticcg [70]

Answer:

<h2>2.22 kPa</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{0.4 \times 500000}{0.9}   =  \frac{200000}{0.9} \\  = 222222.2222... \\  = 222222

We have the final answer as

<h3>2.22 kPa</h3>

Hope this helps you

5 0
2 years ago
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