Astudent wanted to drive from austin to san antonio, 80 miles south of austin on highway i35. unfortunately, he entered the highway in the wrong direction and drove all the way to waco-- 100 miles north of austin-- before he noticed the error. in waco, he turned around, drove back to austin and continued to san antonio. the whole trip took 3.93 h. what was the student's average speed during this trip? answer in units of mph. what was the student's average velocity during his trip? take your positive direction to be southbound on i35. answer in units of mph.

Avoltaic cell converts chemical energy to

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?