At room temperature, at what pressure would you expect dry ice to melt instead of sublime?

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

What effect might melting sea ice have for people who live in coastal areas?

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?