Me ayudar portavoz urgente es que es de una evaluación 1. Un automóvil se mueve a una velocidad constante de 40 km/h durante 8 segundos, posteriormente acelera a 4 m/s^2 durante 5 segundos. Determina el desplazamiento total recorrido.

2. Calcula la velocidad con la que llegan las llaves al suelo si se lanzan desde un cuarto piso. Considera que la altura de cada piso es de 387 cm.

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?

Relative to the ground below, how many joules of potential energy does a 1000-kg boulder have at the top of a 5-m ledge?

Explain the difference in reactivity of the elements based on their electron configurations.