What is the approximate pressure of a storage cylinder of recovered r-134a that does not contain any non-condensable impurities and is stored in a room where the temperature is 80°f?
a. 37 psigb. 87 psigc. 157 psigd. 207 psig

How many atoms of nitrogen are in the chemical formula ni(w on

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction