If a passenger on a bus moving east sees a man standing on a curb from the passenger's perspective, the man appears to be moving west at a speed equal to the bus' speed.
When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still the result is a standing still wave.
standing wave :)
No. In many movies it appears that someone opening a parachute flies up in the air. However, this is because of the perspective of the camera, which continues falling while the person slows down. Gravity continues to pull the person down to the ground, the parachute only slows them down.
An object that appears to stay in place is stationary.
If you are standing still and a car passes you at 60 mph it appears to be moving at 60 mph If you are traveling in a car at 60 mph and a car alongside you traveling in the same direction at 60 mph it appears to be not moving, since the relative velocity is 0
It is a horizontal line.
Artists did not yet know how to use perspective and so the art appears flat.
When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still the result is a standing still wave.
When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still the result is a standing still wave.
When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still the result is a standing still wave.
A standing wave.
A standing wave.
standing wave
standing wave :)
standing wave!
standing wave :)
If "appears to have" allows actually has, then a trapezium or trapezoid. If "appears to have" means does not actually have but only looks as if it does then a figure with non-parallel sides, shown from some particualr perspective.