Find the line charge density on a long wire if the electric field 45 cm from the wire has magnitude 260 kn/c and points toward the wire.

line charge density

= 12.95*EXP{-6} C/m

=12.95 microC/m

Where EXP represent 10^

Explanation: The Electric Field, line charge density and lenght of a wire are related as follows

E = charge density/{4*π*permitivity

of free space*lenght}

π=3.142

permitivity of vacuum=8.854*EXP{-12}

Lenght=45cm=0.45m

E=260000N/C

Making line charge density subject of the formula by cross multiplying we have

Line charge density

= 260000*4*3.142*8.854*EXP{-12}*0.45.

= 1294.5*EXP{-8}C/m

= 12.95*EXP{-6}C/m(charge density)

NOTE: EXP represent 10^.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.