8. Semiconductors

A) do not obey Ohm's law

B) obey Ohm's law

C) do not use electrons to conduct electricity.

D) need light to work

What is the current through the battery

Which two particles are found in an atom's nucleus

As the ambulance got closer, Marge noticed that the pitch of the siren got higher. This happened because

Caused by magma pushing upward through weak spots in the Earth's crust

What is the overall charge of 1.5 x 10^10 electrons?

A 29 foot ladder leans against a building so that the angle between the ground and the ladder is 75 ∘. How high does the ladder reach up the side of the building? Round to 2 decimal places.

What is a difference between an isotope and a ion

2. An airplane travels 335 miles in 45 minutes. How fast does it travel? How fast is that in km/hr?

A falling skydiver opens his parachute. A short time later, the weight of the skydiver-parachute system and the drag force exerted on the system are equal in magnitude.

Consider the expression below. Assume m is an integer. 6m (2m + 18) Enter an expression in the box that uses the variable m and makes the equation true. (Simplify your answer completely. If no expression exists, enter DNE.)