Along, straight wire carries a current of 4.23 a. an electron travels at 47100 m/s parallel to the wire, 61.1 cm from the wire. the permeability of free space is 1.25664 × 10−6 n/a 2 and the charge on an electron is 1.6 × 10−19 c. what force does the magnetic field of the current exert on the moving electron? answer in units of n.

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

What is the increase in density of a medium due to wave travel?

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90