3. As the ice melts into liquid water, what happens to the kinetic energy of the particles in the sample? 4. How does the kinetic energy of the particles in the sample relate to the sample’s temperature?

During cooling, the kinetic energy of the molecules falls. why does this happen? a. the motion of the molecules increases. b. the motion of the molecules slows down. c. the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.

Consider an air-filled charged capacitor. how can its capacitance be increased?

An airplane is flying with a velocity of 240 m/s at an angle of 30.0∘ with the horizontal, as the drawing shows. when the altitude of the plane is 2.4km, a flare is released from the plane. the flare hits the target on the ground. what is the angle θ?