subject
Physics, 27.05.2021 22:40 GamerGirl15

Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other is moving toward an observer at 18 m/s, a beat frequency of 5.4 Hz is heard. What is the frequency the horns emit

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 06:00
Ineed the answer to question 1 , i’m desperate
Answers: 3
question
Physics, 22.06.2019 08:40
When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called
Answers: 2
question
Physics, 22.06.2019 13:30
6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
question
Physics, 22.06.2019 19:00
The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
Answers: 1
You know the right answer?
Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other...
Questions
question
Mathematics, 28.10.2020 07:40
question
Social Studies, 28.10.2020 07:40
question
Mathematics, 28.10.2020 07:40
question
Mathematics, 28.10.2020 07:40
question
Mathematics, 28.10.2020 07:40
question
Chemistry, 28.10.2020 07:40
Questions on the website: 13722367