What force must a seatbelt exert on a 75kg person to slow them from 32m/s to rest in 0.1s?

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

How can you improve the percent yield of copper in this lab? check all possible strategies that will you do so. measure reactants precisely. stir to the reaction take place. chill the reactants before combining them. wait patiently until the reaction completes. make sure to recover as much copper as possible.