An unknown material is left standing and separates into layers. the substance is a

a. solution

b. suspension

c. compound

d. colloid

Colloid

Explanation:

A suspension comprises of a substance that is dispersed in a liquid. Colloid may result when oil is mixed with water. In colloid , the other substance is merely scattered in a another and form a lower layer when the colloid is left to stand. A dispersion oil in water is called an emulsion. It is a type of colloid.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)