You’re an electrical engineer designing an alternator (the generator that charges a car’s battery). mechanical engineers specify a 10-cm-diameter rotating coil, and you determine that you can fit 250 turns in this coil. to charge a 12-v battery, you need a peak output of 14 v when the alternator is rotating at 1200 rpm. what do you specify for the alternator’s magnetic field?

wavelength variability is the right one

0.11 m/s and 0.28 m/s should be correct

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.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.