Two equal charges with the same magnitude of 18 and opposite signs, lie on the opposite corners of a square of 27 cm sides. As shown below, Q and "-Q" represent the two charges

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

the components of a vector are the parts of the vectors that are to each other.

b perpendicular

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.

the doppler effect is used by weather forecasters to measure 

moving clouds