10 POINTS! The heater is designed to work from a 3.6V supply it has a power rating of 4.5W at this voltage.
By considering the current in the heater, calculate the resistance of component X when there is the correct potential difference across the heater.

power out to power in less than 100%

there are no contact forces mentioned on the list of choices that you've provided.

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.