![subject](/tpl/images/cats/fizika.png)
Physics, 14.02.2020 02:29 alleyboard
The Earth’s surface, on average, carries a net negative charge (while the clouds and lower atmosphere carry a net positive charge of nearly equal magnitude), giving rise to an electric field at its surface which is about 150 N/C in size.1 Assuming a spherical Earth, determine(a) the total charge on Earth’s surface responsible for this field and the corresponding surface charge density.(b) Given the 150 N/C field at Earth’s surface, how much lower is the field strength right below a cloud at a height of 5 km? [Careful for rounding errors here.]
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:30
The mini-refrigerator fire was most likely caused by what type of wiring?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 19:00
The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:30
The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 23:30
1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?
Answers: 3
You know the right answer?
The Earth’s surface, on average, carries a net negative charge (while the clouds and lower atmospher...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 20:50
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 24.03.2021 20:50
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 24.03.2021 20:50
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
English, 24.03.2021 20:50
![question](/tpl/images/cats/fr.png)
French, 24.03.2021 20:50
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 24.03.2021 20:50
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 24.03.2021 20:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 24.03.2021 20:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 24.03.2021 20:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.03.2021 20:50