Physics, 13.07.2019 18:10 kaffolter25
Lightning strikes a lossy dielectric sphere--e 1.2eo, ơ-: 10 (s/m)- of radius 0.1 (m) at time t-0, depositing uniformly in the sphere a total charge 1 (mc). determine, for all t, a) the electric field intensity both inside and outside the sphere, b) the current density in the sphere. p4-4 refer to problem p.4-3. a) calculate the time it takes for the charge density in the sphere to diminish to 1% of its initial value. b) calculate the change in the electrostatic energy stored in the sphere as the charge density diminishes from the initial value to 1% of its value. what happens to this energy? determine the electrostatic energy stored in the space outside the sphere. does this energy change with time?
Answers: 1
Physics, 22.06.2019 05:30
Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue
Answers: 2
Physics, 22.06.2019 19:30
The ability to make things happen is also called a. heat b. force c. matter d. energy
Answers: 1
Physics, 22.06.2019 21:30
While carrying a heavy box up the stairs,you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.
Answers: 1
Lightning strikes a lossy dielectric sphere--e 1.2eo, ơ-: 10 (s/m)- of radius 0.1 (m) at time t-0,...
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