Which of the following is true about liquids?
A) They do not have a fixed shape or a fixed volume.
B) They have a fixed shape but not a fixed volume.
C) They retain a fixed shape and volume.
D) They do not have a fixed shape, but they have a fixed volume.

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy