Dos ciclistas salen al mismo tiempo de dos ciudades, A y B separados por una distancia de 200km. El primer ciclista sale de A hacia B a 40 km/h. El segundo sale de B hacia A a 20 km/h

f=ma newton

f=100x2.5=250n

d) physical means can be used to separate the components of air.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods