at t=0s a car has a speed of 30m/s. at t=6s, its speed is 14m/s. what is its average acceleration during this time interval?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem