Compare and contrast conductors and insulators. which statement is true? a. metal is a great insulator, but does not work well as a conductor.
b. conductors allow charged particles to flow but insulators stop the low of elecricty
c. insulators allow the flow of electricity, but conductors trap electrons. d. plastic can be used as both an insulator and a conductor

Asample of a gaseous substance changes into a liquid

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?