A pirate's treasure chest lies 20 m below the surface of the ocean. What is the magnitude of the force that acts on the rectangular top that is .750 m x .425 m?

In a system, when potential energy decreases, then entropy also decreases. true false

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.