A heavy but frictionless piston-cylinder device with a diameter of 6 inches contains pure water. There are stops on the cylinder wall that prevent the piston from rising more than 15.243 inches above the cylinder floor. When the piston barely touches the stops, the water is a saturated vapor at 435∘∘F. a) What is the mass of the water?

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o