Amaterial that only conducts electric current under certain conditions is a(n)
a. conductor.
b. insulator.
c. semiconductor.
d. vacuum tube.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?

Which governments provide garbage collection services to homes and businesses

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency