Write a lively article for your school magazine, giving your views on social media.

Kids should have social media when they are 13 and up. No minor should have social media thinking they can do whatever they want to do. It is unsafe for them. But 13-17 should be mature enough to go on social media. They'll be able to make friends online with trust and responsibility.

i hope this helps :)

There are many advantages and disadvantages to social media you can use it for a good cause while others use it for not-so-good things. One of the advantages is you can share your life with others and show people who you really are. A disadvantage is that people are on social media to hurt others by bullying, harassing and so much more. It's good to have social media but it depends on whose hands you put them in.

Explanation:

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: