Alarge crate is suspended from the end of a vertical rope. is the tension in the rope greater when the crate is at rest or when it is moving upward at constant speed? if the crate is traveling upward, is the tension in the rope greater when the crate is speeding up or when it is slowing down? in each case, explain in terms of newton’s laws of motion.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay