When a white light falls on a soap bubble, colors lines appear on that bubble, what is the cause of this phenomena? A)The refraction of light .
B)The interference between the reflected rays.
C)The changing of the light speed.
D)The colors in the soap solution.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.