Physics, 14.12.2019 18:31 lexybellx3
Atest tube containing 35.5 g of lead shot (pb) is placed into a beaker containing deionized water(di h2o) at 25 degrees celsius. the test tube is removed 15 minutes after the water in the beaker has reached its boiling point (210 degrees fahrenheit). the lead is then gently transferred to a coffe-cup calorimeter containing 50.0g of di h2o at 22 degrees celsius. the temperature is observed to be 65.4 degrees celsius. determine the specific heat of lead and calculate the percent error
Answers: 1
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
Physics, 22.06.2019 19:30
Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?
Answers: 2
Physics, 22.06.2019 22:50
What is an electric motor? explain its operation. 2-3 sentence
Answers: 1
Atest tube containing 35.5 g of lead shot (pb) is placed into a beaker containing deionized water(di...
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