What causes an aurora?
O A. An aurora is the consequence of solar wind entering the Earth and cutting through the Earth's magnetosphere.
OB. An aurora is the consequence of combustion of gases taking place at the poles of the Earth.
Oc. An aurora is the consequence of solar prominences entering the Earth.
OD. An aurora is the consequence of Sunspots entering the Earth.

Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.