A19.0-l volume of an ideal gas in a cylinder with a piston is at a pressure of 2.8 atm. enough weight is suddenly removed from the piston to lower the external pressure to 1.4 atm. the gas then expands at constant temperature until its pressure is 1.4 atm. the change in the internal energy of a system, δe, for an isothermal expansion of an ideal gas is 0. use this information in your calculations for this problem.

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?

Ais not a mixture. colloid compound suspension solution