Nolan set up the equipment shown in order to induce a current in a wire. which best explains why no current is induced?

(a)the wire needs to be coiled less tightly.

(b)the wire needs to be straight, not coiled.

(c)the magnet needs to be moved through the coils of wire.

(d)the magnet needs to be held above the coils of wire.

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].

Based on the diagram of the electric field lines around the two spherical charges, what are the signs of the left and right charge respectively?