A submarine took 9 hours to complete a journey. For the first 5 hours, it travelled at an average speed of 106 km/h. For the rest
of the journey, it travelled at an average speed of 125 km/h.
What was the total distance of the journey?

What is the scientific definition of energy that relates to work

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.

Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas