If there are two weights on the scale, one 1.5m from the fulcrum weighing 1.7 kg, and the second 1.2m from the fulcrum, what must the second weight weigh in order to balance the scale? a. 9 kg c. 2.1 kg b. 1.7 kg d. 2.4 kg

The fulcrum is the point in any mechanical device where the moment due to weights is zero.

(Weight 1 x distance 1) - (weight 2 x distance 2) = 0

(1.7 Kg x 1.5 m ) - (weight 2 x 1.2 m) = 0

weight 2 = (1.7 Kg x 1.5 m ) / 1.2 m

= 2.1 Kg

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

the answer is d. none of the above