What is t=3seconds in scrience

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Un jugador de beisbol batea un foul recto en el aire.la pelota deja el bate con una rapidez de 120 km/h. en ausencia de resistencia del aire. ? cual sera la rapidez de la pelota cuando la atrape el catcher

What are similarities and differences between refraction, reflection, diffraction and absorption?