Roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the
primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table.
transformer
secondary winding (coils)
primary winding (coils)
80
60
70
50
to
which transformer should roberto use to have an ending voltage of 4 v?

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.

the ima (higher than 1m) will be greater than the ima with the height of 1m.

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