4.-El bloque de la figura recibe las fuerzas que se muestran a)Calcula la fuerza resultante
b)Calcula la aceleración que recibe el cuerpo
c) Si el bloque estaba en reposo al recibir las fuerzas, ¿Qué velocidad adquiridas a los 4 segundos?

An airplane flies eastward and always accelerates at a constant rate. at one position along its path it has a velocity of 34.3 m/s, it then flies a further distance of 40100 m and afterwards its velocity is 47.5 m/s. find the airplane\'s acceleration and calculate how much time elapses while the airplane covers those 40100 m.

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

What occurs during a combustion reaction