What is the control center of the bacteria cell

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?