An infinite plane has a uniform surface charge distribution +σ on its surface. Right next to it is an infinite parallel layer of charge of thickness d and uniform volume charge density -p. All charges are fixed. Find the electric field E everywhere, and sketch E as a function of distance x from the line of the charge (Take the plane of charge to be atx-0, and the layer of charge to be between x 0andx-d).

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. the area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?