Posted by Vince on Thursday, May 27, 2010 at 12:56pm.
The rubber ballon acquires a negative charge when rubbed. (I takes electrons away from the rubbing material).
The negative charge of the ballon induces a positive charge on the ceiling surface, even if there is zero electrical conductivity there. The induced charge can be due to surface polarization. If the ceiing has small nonzero conductivity but is not grounded, some ceiling electrons will be repelled by the ballon. Either way, an attraction force will exist between ceiing and balloon.
wrench falls out of the gondola of a balloon
that is 540 m above the ocean.
Assuming negligible air resistance, what
was the wrench’s speed as it hit the water?
The acceleration of gravity is 9.8 m/s
2
.
Answer in units of m/s
Related Questions
Physics-Help-I'm Stuck - If a balloon is made of Mylar(alumized plastic) ...
Physics - From your vantage point on the roof of your 6.5 m tall apartment ...
physics - A balloon rubbed against denim gains a charge of -9 µC. What is ...
Physics - A balloon rubbed against denim gains a charge of -8.0 uC. What is the ...
Physics - A balloon rubbed against denim gains a charge of -8.0 uC. What is the ...
Physics - A balloon rubbed against denim gains a charge of −2.0 µ...
Physics - Question: When a balloon is rubbed with fur, it becomes negatively ...
science - I had to I an experiment where a balloon was tied to each end of a ...
Physics - A cylindrical carnival ride is spinning with a frequency of 0.5 Hz in ...
physics - A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a ...
For Further Reading
