The doppler effect is an effect produced by a moving source of sound or electromagnetic waves due to the relative motion of a source or a receiver. if an emergency vehicle approaches bob and moves away from jill, how does the frequency of the siren change? a) neither bob or jill perceive any change in the frequency of the siren. b) as an emergency vehicle approaches bob the frequency appears to increase. c) as an emergency vehicle moves away from jill the frequency appears to increase. d) bob does not notice any change until the vehicle passes him and the siren increases.
Answers: 2
Physics, 21.06.2019 16:00
Your pendulum clock which advances 1.0 s for every complete oscillation of the pendulum is running perfectly on earth at a site where the magnitude of the acceleration due to gravity is 9.80 m/s2. you send the clock to a location on the moon where the magnitude of the acceleration due to gravity is 1.65 m/s2.
Answers: 2
Physics, 22.06.2019 10:00
Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages
Answers: 1
Physics, 22.06.2019 17:30
The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element
Answers: 1
Physics, 23.06.2019 00:00
You can melt ice by applying pressure because the solid/liquid line has a slope.
Answers: 3
The doppler effect is an effect produced by a moving source of sound or electromagnetic waves due to...
Computers and Technology, 03.11.2020 16:50