Physics, 23.09.2019 14:30 shaylawaldo11
Theseus the rat is in a labyrinth. initially, he is in a chamber with two openings. theseus always chooses one of these two possible directions with equal probability. if he goes to the right, then he needs to walk for three minutes only to come back to his initial position. if he goes to the left, then he needs to walk for one minute before finding a fork in the path. with probability 1/3 he will choose the upwards path to his right, which leads to the exit, after another minute walk. with probability 2/3 he will choose the other way, which after four more minutes walking, will lead to his departing point. what is the expected time that theseus will remain in the labyrinth
Answers: 1
Physics, 22.06.2019 12:20
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?
Answers: 2
Physics, 22.06.2019 17:00
In the future, people will only enjoy one sport: electrodisc. in this sport, you gain points when you cause metallic discs hovering on a field to exchange charge. you are an electrodisc player playing the popular four disc variant. the disks have charges of qa = −8.0 µc, qb = −2.0 µc, qc = +5.0 µc, and qd = +12.0 µc. (1) you bring two disks together and then separate them. you measure the resulting charge of these two disks and find that it is +5.0 µc per disk. which two disks did you bring together? (a) a and b (b) a and c (c)a and d (d)b and c(e) b and d (f) c and d. (2) you bring three disks together and then separate them. you measure the resulting charge of these three disks and find that it is +3.0 µc per disk. which three disks did you bring together? a, b, and c (a) a, b, and d (c) a, c, and d (d) b, c, and d. (3) given the resulting charge of each disk measured in (b) is +3.0 µc, how many electrons would you need to add to a disk of this charge to electrically neutralize it? electrons
Answers: 3
Theseus the rat is in a labyrinth. initially, he is in a chamber with two openings. theseus always c...
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