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Simora [160]
3 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]3 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 blades of a metal cutter are shorter than the blades of paper cutter scissor. Give reason​
Sladkaya [172]

Answer:

Metal is a tougher material to cut though, so the blades must be shorter to create more pressure to break through the metal. Paper on the other hand is easier to cut through so the blades can be longer in order to cut more in each snip.

8 0
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Which of the following is an example of the transformation of gravitational potential energy into motion energy (kinetic energy
nikklg [1K]

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A drop of water falling from a faucet into a sink

5 0
3 years ago
True or False A Safety Data Sheet (SDS) provides even more information on chemicals than a label.
Sonja [21]

A Safety Data Sheet (SDS) provides even more information on chemicals than a label: True.

<h3>What is a Safety Data Sheet (SDS)?</h3>

A Safety Data Sheet (SDS) can be defined as a text-based document (bulletin) that is developed to provide more information with respect to the chemical and physical properties of a chemical compound, substance or equipment such as:

  • Flammability
  • Temperature
  • Radioactivity

Additionally, a Safety Data Sheet (SDS) contains information on the potential health hazards and safety precautions for proper use, handling, storage and transportation of a chemical compound, substance or equipment.

In conclusion, we can deduce that a Safety Data Sheet (SDS) provides even more information on chemicals than a label, which only contains lesser information about a product.

Read more on Safety Data Sheet (SDS) here: brainly.com/question/21522463

4 0
3 years ago
In which of the following cases would you feel weightless?
Dafna11 [192]
Falling from an airplane.
6 0
3 years ago
Read 2 more answers
9. A bicycle tire is spinning clockwise at 3.80 rad/s. During a time period of t = 2.35 s, the tire is stopped and spun in the o
Dima020 [189]

Answer:

option E

Explanation:

given,

angular speed of bicycle tire ()= 3.80 rad/s

time period = 2.35 s

tire stops and spun in opposite direction with angular velocity =  3.80 rad/s

average angular acceleration

initial angular speed = ω₀ = - 3.80 rad/s

final angular speed = ω₁ = 3.80 rad/s

change in angular velocity

\Delta \omega = \omega - \omega_0

\Delta \omega = 3.80 - (-3.80)

\Delta \omega = 7.6\ rad/s

average angular acceleration

\alpha = \dfrac{\Delta \omega}{t}

\alpha = \dfrac{7.6}{2.35}

\alpha = 3.23\ rad/s^2

approximately equal to 3.4 rad/s²

the correct answer is option E

4 0
3 years ago
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