Hand In 1 Solutions(07)

# Hand In 1 Solutions(07) - Solutions for Hand-In Set#1 PHYS...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Solutions for Hand-In Set #1 PHYS 212 - Spring 2007 Problem A2 — Repulsive Balloons Blew up the balloons (i.e., inflated them — I didn’t use any explosives or anything) and tied them to the ends of a piece of string. Let them hang, and eventually (after bopping each other a few times), they came to rest touching each other. (a) I wasn’t wearing a fuzzy sweater, so I rubbed the balloons on my head. Let them hang by the string again (holding string in the middle). The first time, the bal- loons stuck together. Then after I separated them again, they repelled slightly for a while — then one came up a little and stuck to the top of the other. Obviously, I hadn’t charged up the whole surface of the balloons. Try again, this time really making sure that I rubbed all sides of the balloon against my hair. This time it worked — the two balloons remained separated. It was actually kind of cool — the distance between the two of them oscillated around an average value of about 7 or 8 cm (it was difficult to measure, because I couldn’t bring anything close without affecting the forces acting on the balloons). Sketch Force Diagram for Left Ballon (Blue) T F gravity F e (b) As I pushed the blue balloon toward the red one, the distance between the two of them decreased. In fact, they decreased to the point where the two of them were...
View Full Document

{[ snackBarMessage ]}

### Page1 / 2

Hand In 1 Solutions(07) - Solutions for Hand-In Set#1 PHYS...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online