Exercice 20 : Un ballon sous l'eau. Anne s'amuse à maintenir un ballon sous l'eau pour le relâcher et le voir jaillir hors
de l'eau. On s'intéresse aux forces qui s'exercent sur le ballon juste avant qu'Anne
ne le relâche. La force d'attraction de la Terre sur le ballon est de 4,4 N et Anne
exerce une force de 52 N pour maintenir le ballon vers le bas. L'eau exerce une force
de poussée sur le ballon. Cette force, appelée poussée d'Archimède, est celle qui
permet au ballon de flotter.

The bubba chump shrimp company processes and packages shrimp for sale to wholesale seafood distributors. the shrimp are transported to the main plant by trucks that carry 1,000 pounds (lb) of shrimp. once the continuous flow processing of the shrimp begins, no inventory is allowed in buffers due to spoilage and all of the shrimp must be processed within 12 hours to prevent spoilage. the processing begins at the sorter, where the trucks dump the shrimp onto a conveyor belt that feeds into the sorter, which can sort up to 500 lb per hour. the shrimp then proceed to the desheller, which can process shrimp at the rate of 400 lb per hour. however, after 3 hours and 45 minutes of processing, the desheller must be stopped for 15 minutes to clean out empty shrimp shells that have accumulated. the veins of the shrimp are then removed in the deveining area at a maximum rate of 360 lb per hour. the shrimp proceed to the washing area, where they are processed at 750 lb per hour. finally, the shrimp are packaged and frozen. what is the daily process capacity of the processing plant (excluding the packaging and freezing)?

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?