You devise another means of testing the coefficient of friction. You now take block A and have it travel up the bar BC when the angle associated with theta is 30 degrees. Again, given a coefficient of kinetic friction of 0.3, what is the acceleration (in ft/s2) of the block while it is moving?

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.

Answerwavelength;