What is the wavelength of the sound you hear as a train blowing its whistle is coming towards you?
a
The wavelength is shorter than the sound of the
whistle at rest
b You will not hear anything
С
There is not enough information to answer this
question
d
The wavelength is longer than the sound of the
whistle at rest
e
The wavelength is the same as the sound of the
whistle at rest

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )