Answer:
a) k = 120 N / m
n b) f = 0.84 Hz
, c) v = 1,056 m / s
, d) x=0
Explanation:
a) To find the spring constant let's use Hooke's law
F = - k x
k = -F / x
k = - 24.0 / (0.2)
k = 120 N / m
b) the angular velocity in harmonic motion is
w = √ k / m
w = √ 120 / 4.30
w = 5.28 rad / s
The angular velocity is related to the frequency
w = 2π f
f = w / 2π
f = 5.28 / 2π
f = 0.84 Hz
c) System speed is
v = dx / dt = -A w sin (wt +φ)
The speed is maximum when sin (wt + φ) = ±1
v = A w
v = 0.200 5.28
v = 1,056 m / s
d) in which position the velocity is maximum, as the velocity is a function of the sine and the position of the cosine when the sine is maximum the cosine is zero, so
x = A cos 0 = 0
x=0
The answer is C for this question
Answer:
The density of the atmosphere varies in each layer as well as between each layer. The density is highest at the Earths surface and decreases as you go up.
As you go to surface it gets hotter and denser so the core would be densest and hottest and crust is the least of everything
Explanation:
im not sure if this answers your question but hopefully it can help
The correct option is A.
Coal fire plants when operating correctly give off carbon dioxide which accumulate carbon and other green house gases in the atmosphere. This accumulation result in the global warming of the earth.