How can scientists use the composition of matter in today's universe to support the big bang theory, which describes a universe with 95% hydrogen and 5% helium in its infancy?​

Write the correct abbreviation for each metric unit

Gunpowder residue is most likely to show up where on a shooters hands

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct