Recent content by mousesgr

what is the direction of dx & e-field then?

the diagram what is the limit of the integal then? a to b or 0 to b?

Electricity and Magnetism urgent!pls! An infinite long line of charge of constant charge density a is located near the line AB which carries uniform charges with charge density b. Suppose both two lines are in the same plane, calculate the electrostatic force exerted on the line AB. i don't...

Electricity and Magnetism urgent!help! 11. Electric charge is distributed uniformly along each side of a square. Each side of the square has length a. Two adjacent sides have positive charge with total charge +Q on each. (i) If the other two sides have negative charge with total charge –Q on...

i mean i know how to do the first one now

i know how to do qs 1

qs 1 is not 0/0 or inf/inf from how do consider L'Hopital's rule?

find 1 .derivaive of y, y = x^a^x 2. nth derivaive of (x+p)^-1 p is constant 3. nth derivaive of (ax+b)/(cx+d) 4. nth derivaive of y = sin (^2) x

1. lim [(1+x)^(1/x) - e ] / x x ->0 2. lim [sin(2/x)+cos(1/x)]^x x -> inf help...

i want to know What is the problem with the following argument? can this argument explained by Informal Fallacies ??

there's false premise, that mean the argument is valid?

In order to walk a distance of 1 meter, we have to walk half a meter first. Similarly, we have to walk 1/4 meter before we can walk that half-meter. The same principle goes on forever. Hence we can never get started in walking a distance of 1 meter. What is the problem with the following...

i want to know Why sometimes is it more accurate to weigh liquids than to use a graduated cylinder to measure them??

it is invalid... but i still can't understand why is "All not H" equivalent to "No H" ?

1. only John (subject) is not aware of the problem of HK (middle term) 2. some people who are aware of the problems of HK (middle term)are not empowered by the PRC(predicate) conclusion : John(subject) is ewpowered by the PRC(predicate) i don't know how to convert them to A, E, I, O form...