For a science experiment, Lorraine is testing a cloth that is electrically charged and an uncharged cloth to see if they will attract an uncharged object. Which cloth is the control in her experiment? The charged cloth
The uncharged cloth
The uncharged object
Both cloths

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?