The spring above stretches 0.15 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.1 m from its equilibrium position and then released. Determine the spring constant of the spring?
Calculate the period of oscillation of this system.
Calculate the frequency of the oscillation.

positive reinforcement? ?

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.