A slinky is stretched across a classroom to 9 meters. A compression travels along the slinky at a velocity of 2
m
s
. How long does it take to travel the entire 9m length of the classroom?
2 ms
Positive acceleration.
666.67 seconds
a high speed train travels south for 2.00 h for a distance of 454km. what is its average velocity?
The acceleration of an object that travels in a constant straight line velocity is zero.
50 km/hr
No. It travels as electromagnetic waves. Compression requires a medium that is compressed (and rarefied) but light travels through vacuum.
You mean, travels at 10000 m/s.....if so...Its velocity is 10000m/s
How quickly the wave travels
Sound requires the physical compression and expansion of molecules to be transmitted, it is not electromagnetic energy like light and microwaves. It therefore cannot be transmitted through a vacuum so it cannot have a velocity in space
Velocity tells you what speed a moving object travels at and in what direction.
The official definition for the word group velocity is "the speed at which the energy of a wave travels."
velocity
Just divide the distance by the time. To know the velocity, you would also need to know in what direction the car travels.
Positive acceleration.
by refraction
5m/s
Light travels at its maximum velocity c in a vacuum. In a medium with a certain refractive index, it is slowed down and travels with velocity c/index