Fenomenul de reflexie totală se poate produce atunci când lumina se propagă:

In science and physics what is the standard unit of measure for speed?

Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?

Why does the liquid rise up through the dip tube when the valve is open