2. Apply Newton's second law to calculate the frictional force needed to hold a 15 g pen in your fingers and keep it from falling. (g = 9.8 m/s2)

0.147N

Explanation:

F = m( v-u )

t

This rewritten as

F = ma

For the pen to be held without falling , the frictional force must be equal to the force that would bring the pen down.

pie chart because it is in percents ( % )

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.