According to this equation, f=ma, how much force is needed to accelerate an 82-kg runner at 7.5m/s2?
a.
615 n
b.
10.9 n
c.
615 m/s
d.
10.9 m/s

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

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.