What type of mixture scatters light and cannot be filtered easily? A. a colloid, a heterogeneous mixture B. a solution, a heterogeneous mixture C. a colloid, a homogeneous mixture D. a solution, a homogeneous mixture

Which phenomenon provides evidence that light has a wave nature? (1) emission of light from an energy-level transition in a hydrogen atom (2) diffraction of light passing through a narrow opening (3) absorption of light by a black sheet of paper (4)

For each of the following, indicate whether the condition will cause the membrane potential to become more positive, more negative, or largely unchanged when compared to the normal physiological resting membrane potential.

What other type of energy could be created using a circuit?

How do observations differ inferences

Why is metal often used for cooking pans? Metals O A. tend to have high heat capacities, so the food doesn't burn O B. have a negative heat capacity O C. tend to have low heat capacities, so they heat up rapidly O D.

You are riding a bicycle home from school. You average 5 meters per second and you are headed south. What motion can you determine from this data? OA Acceleration OB Distance OC Speed OD Velocity

Spiral galaxy rotation curves are generally fairly flat out to large distances. Suppose that spiral galaxies did not contain dark matter.

How are the functions of the cytoskeleton and the cell wall similar

1. How many electrons does the K level of an atom hold?

A puck traveling at 6 m/s in the + x direction hits a wall and bounces back. Right after the collision with the wall it is traveling in the - x direction at 6 m/s.