Physics, 18.09.2019 00:00 fredvales19
Two spectators at a soccer game in montjuic stadium see, and a moment later hear, the ball being kicked on the playing field. the time delay for spectator a is 0.231 s and for spectator b is 0.128 s. sight lines from the two spectators to the player kicking the ball meet at an angle of 90°. how far are (a) spectator a and (b) spectator b from the player? (c) how far are the spectators from each other? (take the speed of sound to be 343 m/s.)
Answers: 3
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Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f
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Physics, 22.06.2019 14:30
What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?
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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
Two spectators at a soccer game in montjuic stadium see, and a moment later hear, the ball being kic...
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