![subject](/tpl/images/cats/fizika.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:30
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00ă—106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ďµ0=8.85ă—10â’12c2/(nâ‹…m2) .
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:20
Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation 2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 3
You know the right answer?
As an airplane descends toward an airport, it drops a vertical distance of 21 m and moves forward a...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.10.2020 14:01
![question](/tpl/images/cats/istoriya.png)
History, 12.10.2020 14:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 12.10.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 12.10.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 12.10.2020 14:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 12.10.2020 14:01
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.10.2020 14:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 12.10.2020 14:01
![question](/tpl/images/cats/biologiya.png)
Biology, 12.10.2020 14:01
![question](/tpl/images/cats/istoriya.png)
History, 12.10.2020 14:01
![question](/tpl/images/cats/istoriya.png)
History, 12.10.2020 14:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.10.2020 14:01
![question](/tpl/images/cats/mat.png)
Mathematics, 12.10.2020 14:01