Physics, 05.03.2020 13:22 kieramacphee3533
Consider a point charge qqq in three-dimensional space. Symmetry requires the electric field to point directly away from the charge in all directions. To find E(r)E(r)E(r), the magnitude of the field at distance rrr from the charge, the logical Gaussian surface is a sphere centered at the charge. The electric field is normal to this surface, so the dot product of the electric field and an infinitesimal surface element involves cos(0)=1cos(0)=1. The flux integral is therefore reduced to ∫E(r)dA=E(r)A(r)∫E(r)dA=E(r)A(r), where E(r)E(r)E(r) is the magnitude of the electric field on the Gaussian surface, and A(r)A(r)A(r) is the area of the surface.
Answers: 3
Physics, 22.06.2019 04:20
Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f
Answers: 1
Physics, 22.06.2019 11:00
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
Physics, 22.06.2019 17:00
If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction
Answers: 3
Consider a point charge qqq in three-dimensional space. Symmetry requires the electric field to poin...
History, 06.11.2020 18:30
Mathematics, 06.11.2020 18:30
History, 06.11.2020 18:30
SAT, 06.11.2020 18:30
Mathematics, 06.11.2020 18:30
Physics, 06.11.2020 18:30
Mathematics, 06.11.2020 18:30
Mathematics, 06.11.2020 18:30
Physics, 06.11.2020 18:30
Social Studies, 06.11.2020 18:30
English, 06.11.2020 18:30
Biology, 06.11.2020 18:30
Advanced Placement (AP), 06.11.2020 18:30