Athin rod extends along the z -axis from z = −d to z = d . the rod carries a positive charge q uniformly distributed along its length 2d with charge density 37.99 c/m . if the electron started out at rest at the point z = 4d , what is its velocity at z = 3d ? (take elementary charge 1,6x10-19 c , take coulomb's constant 9x109 nm2c-2 and take mass of electron 9,1x10-31 kg). write your answer in multiples of 1010 m/s. and write your answer in two decimal places.

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible

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.

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

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explanation: