El eje de un cilindro metálico hueco largo (radio interior = 1,0 cm, radio exterior = 2,0 cm) coincide con un cable largo. el alambre tiene una densidad de carga lineal de -8.0 pC / m, y el cilindro tiene una capa neta por unidad de longitud de -4.0 pC / m. Determine la magnitud del campo eléctrico 3.0 cm a partir del eje. a. 5.4 N/C
b. 7.2 N/C
c. 4.3 N/C
d. 3.6 N/C
e. 2.4 N/C

the correct answer is b

because it says use -2,0,and 2 for x, we can plug those numbers into the equation. y/4=3/4(-2)+2   y/4= -1 1/2 +2 now to get x by itself, we can multiply each side by 4. y=-6+8 which equals y=2 when x=-2. now you can do the same thing with 0 and 2 as x. you get y=8 when x=0 and y=14 when x=2.

x   |   y

-2 |   2

0   |   8

2   |   14

speed

ratio of distance traveled to time interval

net force

vector sum of forces on object

object

source of diverging light rays either luminous or illuminated

don't remove my answer im trying my best to answer them

explanation:

c) up is the direction the magnetic force is acting on the charge.