A chain lying on the ground is 10 m long and its mass is 70 kg. How much work (in j) is required to raise one end of the chain to a height of 4 m? (use 9. 8 m/s2 for g. ).

What is one unexpected problem associated with cell phone use? a. it causes you to misjudge distances. b. it decreases the efficacy of your peripheral vision. c. it distracts your hearing from events on the roadway. d. it makes you more susceptible to other distractions.