A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 205 hz. A person on the platform right next to the speaker detects the sound waves reflected off the wall and those emitted by the speaker.

Number 3 is the logical, go-to answer for the classical school of thought as they strongly believe that an individual commits a crime of their own free will and fully understands the  consequences, making them liable to whatever punishment is dealt to them. 

Each eukaryotic cell has a plasma membrane, cytoplasm, a nucleus, ribosomes, mitochondria, peroxisomes, and in some, vacuoles; however, there are some striking differences between animal and plant cells.

Take a break, read a book, take a nap, self-care really