Tammy and michael are pushing a 40 kg chair with a force of 68 n. what is the acceleration of the chair?
a. 1.7 m/s2
b. 1.8 m/s2
c. 2.0 m/s2
d. 2.7 m/s2

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors