Physics, 28.09.2019 20:30 AikawaAisyah2438
Aslab of charge with charge density p(z) = 2 poz/d extends from z = -d/2 to z= +d/2 and is infinite in extent in the x - and y directions. assume the permittivity in all regions is 80. (a) using the principle of superposition and results proved in lectures, write down an expression for the electric field e(z) everywhere within and outside the slab of charge. provide all working. (b) verify that your answer satisfies gauss' law in differential form. (c) write down an expression for the electric potential $(z) at points inside and outside the slab. (d) calculate the total energy per unit area stored in the slab using your answer to (a).
Answers: 2
Physics, 22.06.2019 03:00, alexanderavrett
Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.
Answers: 2
Physics, 22.06.2019 05:10, zionnahl
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 23.06.2019 01:00, DESI111609
Suppose that two objects attract each other with a gravitational force of 16 units. if the distance between the two objects is double, what is the new force of attraction between the two objects?
Answers: 3
Aslab of charge with charge density p(z) = 2 poz/d extends from z = -d/2 to z= +d/2 and is infinite...
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