Why does a light go out when you turn off the wall switch?
a. the switch changes the direction of the flow of electrons.
b. the switch causes a break in the circuit.
c. the switch changes the circuit from series to parallel.
d. the switch absorbs the electrical energy.

Phase changes are chemical changes. true or false

Which best represents the law of conservation of mass ?

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0