Answer:
4.5 Cm
Hope this help
Answer: 0.58 s
Explanation: Solution attached:
Convert first 100.0 km/h to m/s
100.0 km/h x ( 1000 m / 1 km ) x ( 1h / 3600s ) + 27.8 m/s
Use v= d / t and derive too find t:
t = d / v
= 16 m / 27.8 m/s
= 0.58 s
cancel out meters and the remaining unit is in seconds.
Answer:
Plants absorb <u>carbon dioxide</u> from the atmosphere and release <u>oxygen carbon</u> to the atmosphere
Explanation:
Answer:
f = 2ππ √g / A
Explanation:
The expression that describes the simple harmonic movement is
x = A cos (wt + Ф)
So that the penny should the surface when the system is going down the system must in faster than the acceleration of gravity, let's look for this acceleration
v = dx / dt
a = dv / dt = d²x / dt²
.a = - A w² cos (w t + Ф)
The maximum value of this acceleration is when the cosine value ±1
a = A w²
For the penny to leave the surface the limit acceleration is
a = g
g = A w²
w² = g/A
w = 2π f
g / A = 4 π² f²
f = 2ππ √g /A
For values greater than this frequency the penny separates from the surface in the downward movement
The magnitude is the force pushed to make an acceleration