Answer:
the rate of precession is 0.041 rad/s
Step-by-step explanation:
given information:
radius, R = 50 cm= 0.5 m
disk length, d = 11 cm, r = 5.5 cm = 0.055
angle, θ = 30°
angular velocity of the disk, ω = 1000 rev/min = 1000 2π/60 =
rate precession, Ω
Ω = m g r / I ω
where
m = mass
g = gravitational force
r = the radius of the center disk
I = inertia
ω = angular veocity
I =
Ω = (m g r )/ ( ω)
= 2 g r / ( ω)
= 2 x 9.8 x 0.055 / ( 104.7)
= 0.041 rad/s
I believe the surface area is 260
Hope this helped!!!
65% of 240
(65/100) * 240
0.65 * 240 Use your calculator.
= 156
The answer is D hope this helps!!
4m + 9 + 5 - 12 = 42
4m + 2 = 42
4m = 40
m = 10