1. If Sarah throws a football 20 meters in 2 seconds, what is the average speed of the football?

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

Difference between series and parallel circuits

Acar starts from rest at a stop sign and reaches a velocity of 25 m/s w in 4 seconds. determine the acceleration of the car. question 3 options: a) 6,25 m/s2 b)6.25 m/s c)100 m/s2 d)100 m/s