A wave with a frequency of 30Hz travels through rubber with a wavelength of 0.4m. What is the speed of the wave?
(12m/s)

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

volts times amps 6 x 0.5 3w

the inner core.

good luck: )

klicker

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada