Un cuerpo de 2kg se encuentra atado al extremo de una cuerda que gira y describe una trayectoria circular de 2 m de diámetro. Si la cuerda soporta una fuerza máxima de 60 N antes de romperse: a. ¿Cuál es la máxima velocidad a la cual puede girar el sistema? b. ¿Cuál es el periodo de rotación para esa velocidad máxima?

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

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