A hiker walks due east for a distance of 25.5 km from her base camp. On the second day, she walks 41.0 km North of West till she discovers the cave she wanted to see. Determine the magnitude and
direction of her resultant displacement between the base camp and the cave.

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton

Which of these activities increases the amount of carbon in the atmosphere?