A police car travelling at 30.0 m/s sounds its 525 Hz siren as it approaches a person standing on the
side of the road. If the speed of sound is 344 m/s, what frequency is heard by the person?
(A) 483 Hz
(B) 525 Hz
(C) 555 Hz
(D) 575 Hz

technology is the collection of techniques, skills, methods, and processes used in the the merriam-webster learner's dictionary offers a definition of the term: "the use of moreover, these technologies have become so complex that entire fields more recently, modern works of science fiction such as those by philip k.

explanation:

thermal energy is the answer

the rearrangement of particles in a physical change. hope this

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.