Answer:
x(t) = 0.077cos(6.455t)
Explanation:
If the spring can be stretched 0.2 m by a force of 50 N, then the spring constant is:
k = 50 / 0.2 = 250 N/m
The equation of simple harmonic motion is as the following:
where 
We also know that the initial velocity is 0.5 m/s, which is also the maximum speed at the equilibrium:
is the initial phase
Therefore, the position of the mass after t seconds is
x(t) = 0.077cos(6.455t)
Answer:
Upward.
Explanation:
A large reduction in the current account deficit will place Upward pressure on the home currency value, other things being equal.
When their currency's value decreases, this means the valuation of foreign assets are rising. This further decreases the deficit in the current account. Additionally, a reduced currency value tends to increase export markets when prices become more cutthroat. Export demand falls as prices rise with inflation setting in.
Answer:
volume is base*length*height
v = b*l*h
472.5 = 7*3*length
(rearranging the equation)
length = 472.5/21
= 22.5
Answer:
false
Explanation:
sound travels slower than light. that is why we see lightning before we hear the thunder
