Chemistry, 05.11.2019 23:31 veronica25681
Pennies are made of zinc coated with copper. copper has a work function of 4.7 ev. the ozone layer blocks nearly all solar radiation with wavelength shorter than 320nm, but a very small amount of 200 nm light still manages to reach the earth's surface. can direct sunlight produce photoelectrons from a penny?
Answers: 3
Chemistry, 21.06.2019 17:30, ronny80
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?
Answers: 3
Chemistry, 22.06.2019 15:00, Zagorodniypolina5
20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?
Answers: 2
Pennies are made of zinc coated with copper. copper has a work function of 4.7 ev. the ozone layer b...
Mathematics, 23.10.2021 22:20