Which statements about Earth’s core help explain Earth’s magnetic field? Select three options.

Earth’s core is composed of magnets.
The inner core is solid.
The outer core is solid.
The inner core is liquid and moving.
The outer core is liquid and moving.
Earth’s core is composed of iron and nickel.

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