The perceived frequency when the fire truck is moving toward you and away from you will be 370 Hz and 329.59 Hz respectively.
<h3>What is the Doppler effect?</h3>
A sudden change in the frequency due to the distance between the objects and source is explained by the doppler effect.
As the source and observer travel toward each other, the frequency of sound, light, or other waves increases or decreases.
The perceived frequency when the fire truck is moving toward you;

The perceived frequency when the fire truck is moving away from you;

Hence, the perceived frequency when the fire truck in cases 1 and 2 will be 370 Hz and 329.59 Hz.
To learn more about the doppler effect refer to the link;
brainly.com/question/15318474
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<span>a driver's foot off the accelerator and on the break pedal. C</span>
1.)Baking powder NaHCO3; sodium bicarbonate Used for baking for cooking, releases CO2 in reaction with other ingredients.
2.)Detergent Sodium sulphate, sodium hydroxide and phosphatecompounds Used for washing clothes.
3.)Toothpaste Calciuym carbonate, sodium flouride Used for cleaning teeth.
4.)Salt NaCl; Sodium Chloride Used in seasoning for cooking; also used as preservative.
5.)Vinegar C2H4O2
acetic acid, ethanoic acid
Used as preservative and for seasoning foods. Utilized for various household cleaning uses.
Answer:
Cl2 + Sb → SbCl3
Cl2 + Sb → SbCl5
Cl2 + Sb → SbCl
Cl2 + Sb → SbCl2
Cl2 + Sb → SbCl3 + SbCl5
Explanation: Hope it will help