Two lenses are placed along the x axis, with a diverging lens of focal length −9.00 cm on the left and a converging lens of focal length 21.0 cm on the right. when an object is placed 18.0 cm to the left of the diverging lens, what should the separation s of the two lenses be if the final image is to be focused at x = ∞? cm

answer: its c lololo

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

conservation of mass

mass before something happens = mass afterwards