Which best describes a semiconductor?

semiconductors are more conductive than a nonmetal and less conductive than a metal.

semiconductors are more conductive than a nonmetal and less conductive than a metalloid.

semiconductors have a high electrical conductivity.

semiconductors have a no electrical conductivity.

Correct answer choice is :

A) Semiconductors are more conductive than a nonmetal and less conductive than a metal.

Explanation:

A semiconductor element has an electrical conductivity amount dropping within that of a conductor such as copper, gold and an insulator, such as glass. Semiconductors can be purified components, such as silicon or germanium, or mixtures such as gallium arsenide or cadmium selenide. In a method named doping, minute quantities of contaminants are combined with pure semiconductors producing large variations in the conductivity of the substance.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

um i think it might be a car?