A piece of copper has a cross sectional area of 3 x 106 m². It carries a current of 100 u A. Calculate the drift velocity if the number of free
electrons
per
unit volume is 1029 m
Assume that the charge on one electron is 1.6 x 10-19 C
-3

lexy is right because she has the labeled s

it becomes positively charged by charging it

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.