9 A microphone is connected to a cathode ray oscilloscope. The diagram, shows the sound wave displayed HAL
The frequency of the sound is increased. What could be the new pattern on the oscilloscope?
A
B
C
D
V
TV
A
B

a straight line sloped

inverse v=i*r

nice nice

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.