Physics, 29.10.2019 18:31 austinmiller3030
Abrick of mass 1.15 kg is attached to a thin (massless) cable and whirled around in a circle in a vertical plane. the circle has a radius of 1.44 m. the cable will break if the tension exceeds 43.0 newtons. what is the maximum speed the brick can have at the bottom of the circle before the cable will break?
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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
Abrick of mass 1.15 kg is attached to a thin (massless) cable and whirled around in a circle in a ve...
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