A mass of 2.205 kg of oxygen fills a weighted piston-cylinder device at 105.091 kPa and 43.483 oC. Device is cooled until the temperature is 23.014 oC. Determine the change in volume in liters

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block