6) Copper used in electric wires comes in two flavors (isotopes): "Cu and Cu. "Cu has an atomic mass of 62.9298 amu and an abundance of 69.09%. The other isotope,"Cu, has an
abundance of 30.91%. The average atomic mass between these two isotopes is 63.546 amu.
Calculate the actual atomic mass of "Cu.

Supongamos que estás estudiando dos estrellas. ambas estrellas tienen la misma magnitud aparente, pero la estrella a tiene una magnitud absoluta mayor que la estrella b. ¿que puedes decir acerca de la distancia a la tierra de estas dos estrellas?

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space