Where T is the period, m is the mass of the object, and k is the spring constant. It is important to note that the amplitude of the oscillation has no effect on the period. Which means the question should in fact say factors - the displacement will have no effect, nor will observing it in any way - the only two things there that will affect the period of the spring is changing the weight and the spring constant.
(a) the brick is in free fall, so it is moving by uniformly accelerated motion, with constant acceleration . The velocity of the brick at time t is given by
where v0 is the initial velocity of the brick (zero, in this case). Using this formula, we can calculate the velocity at t=4.0 s:
<span>(b) The distance covered by the brick in accelerated motion after a time t is given by </span><span> If we substitue t=4.0 s, we find how far the brick falls during this time: </span><span> </span>
Option A (A and B have reached equilibrium concentrations)
for the reaction
A→B , with ΔG'° = –60 kJ/mol
Since the presence of enzyme does not affect the equilibrium concentrations (ΔG is not affected ) , only affect the kinetics → option B is not possible.
For the same reason C is not possible since ΔG is related with the thermodynamics of the reaction ( equilibrium concentrations and feasibility) and not the kinetics.
Since the reaction always proceeds in direction of minimum ΔG , and the reaction lowers ΔG →the process is thermodynamically favorable → D and E are not possible
Since there is always at least a small conversion from pure reactants to products since the entropy increases when pure A is mixed with B ( entropy production due to mixing) , since also the process is thermodynamically favorable and besides the analysis reveals there was conversion from A to B → option A is the one that is more likely (A and B have reached equilibrium concentrations).