How much work do you do when carrying your backpack horizontally to your next class?

Explanation:

Work= force*displacement*cos(Ф)

here Ф=0 hence putt in in we get ,

Work =force*displacement*1

Work=force*displacement

this amount of work you would do

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.