A person walks north for 5 miles, then south for 8 miles, and then north for 6 more miles. The entire trip takes 8 hours. Distance travelled: miles
Displacement: miles
Average speed during trip: miles/hour
Average velocity during trip: miles per hour (north or south?)

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion. what is the frequency f of oscillation?

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?