When. the train approaches you, the wavelength of the sound waves it emits are compressed, and therefore the whistle sounds higher.
But When the train is moving away, the wavelengths are extended, causing the whistle to sound lower. It's called the Doppler effect.
Answer:
0.33 m/s
Explanation:
The graph given is that of distance against time. The slope of such a graph gives the velocity of the object while travelling.
In this graph the change in distance for the last 6 seconds is given by;
The distance is : 10-8 = 2 m
The time in seconds is: 6 s
The velocity = 2/6 = 1/3 m/s
The velocity expressed in decimal form is : 0.33 m/s
Answer:
Mechanical energy is the total energy of the body is made up of scientific energy and potential synergy, these two can be converted into one another without needing help.
The most determining factor of kinetic anergy is speed since it is squared
Explanation:
Mechanical energy is the total energy of the body is made up of scientific energy and potential synergy, these two can be converted into one another without needing help. Kinetic energy is the energy of movement, increasing the speed of the body increases the kinetic energy.
The energy powers an energy from the system configuration when changing to a lower energy configuration this is converted into mechanical energy.
The most determining factor of kinetic anergy is speed since it is squared
