Which factor is NOT needed to calculate a moving object’s average speed?

A. total time

B. total distance

C. total displacement



An arrow representing the velocity 3 m/s east and an arrow representing the velocity 6 m/s east would have the

A. same direction and same length.

B. different directions and same length.

C. same direction and different lengths.

D. different directions and different lengths.



10. Which equation could be used to solve for the average speed of a car that travels 90 m in 20 seconds?

A- Average Speed= 90m/20s

B- Average Speed= 20s/90m

C- Average Speed= 90m x 20s

D- Average Speed= 20s + 90m

Q1. C  Q2. C Q10. A

Explanation:

Q1. Displacement is used to calculate mass, weight, or density.

Q2. Since they have different velocities, but same direction.

Q10. S= D/T (Speed = distance / time)

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation:

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.