You're still traveling down the highway at 25 m/s when the ambulance returns, this time approaching you from the front at the same 45 m/s. The
temperature hasn't changed either. What is the difference in frequency
you hear this time as the ambulance approaches and then passes you?

Vsshsjsussjdjdjdsjssjjsbsbsvssb

Commer= truck drivertravel clerk=bachelors actuary= techinal program

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.