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The intensity of sound waves is linearly proportional to ?

You are able to hear sounds from farther away on a cool night because sound waves are refracted toward ?

When the trough of one wave collides at the same time & place of the crest of an identical wave?

A water heater is rated at 200w ( 200 Joules/sec). How long will the heater take to provide 60,000 joules to heat up a sample of water?

A sample of 100g of 0 Celsius ice is heated up until the sample totally becomes 0 Celsius water ( solid /liquid phase change occurs in this case).What is the total amount of heat provided to the ice sample?( Latent heat of fusion of water /ice is =79.8 cal/g)?

The amount of heat required to increase the temperature of 100g of water rom 20 Celsius ( specified heat of water =4184 JC-1*kg-1)?

When water vapor condense into liquid water?

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(1) The intensity of a sound wave is linearly proportional to the change in the pressure squared.

(2) You are able to hear sounds from farther away on a cool night because sound waves are refracted toward warmer air near the ground.

(3) When the trough of one wave collides at the same time & place of the crest of an identical wave, destructive interference occurs.

(4) The time taken for the heater to provide the energy is 300 secs.

(5) The total amount of heat provided to the ice sample is 7,980 cal.

(6) The amount of heat required to increase the temperature of water is 33,472 J.

Intensity of sound

The intensity of a sound wave is linearly proportional to the change in the pressure squared and inversely proportional to the density and the speed.

Refraction of sound waves

You are able to hear sounds from farther away on a cool night because sound waves are refracted toward warmer air near the ground.

Destructive inference

When the trough of one wave collides at the same time & place of the crest of an identical wave, destructive interference occurs.

Time taken for the heater to provide the energy

E = Power x Time

t = E/P

t = 60,000/200

t = 300 secs

Total amount of heat provided to the ice sample

Q = 79.8 cal/g x 100 g

Q = 7,980 cal

Amount of heat required to increase the temperature of water

Q = 0.1 kg x 4184 J/kgC x (100 - 20)

When water vapor condense into liquid water, temperature = 100⁰C

Q = 33,472 J

Thus, the intensity of a sound wave is linearly proportional to the change in the pressure squared.

  • You are able to hear sounds from farther away on a cool night because sound waves are refracted toward warmer air near the ground.
  • When the trough of one wave collides at the same time & place of the crest of an identical wave, destructive interference occurs.
  • The time taken for the heater to provide the energy is 300 secs.
  • The total amount of heat provided to the ice sample is 7,980 cal.
  • The amount of heat required to increase the temperature of water is 33,472 J.

Learn more about intensity of sound here: https://brainly.com/question/17062836

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