Alguien que me ayude con esto estare muy agradecido. De qué forma el avance del conocimiento de los fenómenos eléctricos ha posibilitado el desarrollo dela tecnología

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped