Answer:
L = 1430.88 kg m²/s
Explanation:
given,
mass of each flywheel = 65 Kg
radius of the rotation = 1.48
three fly wheel rotate in similar direction with speed = 7.84 rad/s
and another in opposite direction = 3.42 rad/s
net angular acceleration momentum = ?
we know,
I is moment of inertia
I = 71.188 kg.m²
angular momentum
L = I ω
three are in same direction and 1 is in different direction
L = 3 I ω₁ - I ω₂
L = 3 x 71.188 x 7.84 - 71.188 x 3.42
L = 1430.88 kg m²/s
Answer:
a collision occuring between two objects in an isolated system, the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.
thank you.
Answer: specific heat capacity of the metal of the container
Cm=1143.1J/kg ∙ K
Explanation:
Step one
Given the following data
Mass of metal container Mm=360g
Mass of water Mw=180g
Mass of ice Mice=24g
T1=22°C
T2=15°C
specific heat capacity of water
Cw = 4190 J/kg ∙ K
the heat of fusion of ice
Lf= 3.34 × 10^5 J/kg.
specific heat capacity of the metal of the container Cm=?
Step two
Heat loss by ice cube =
heat gained by water + heat gained by metal container
I.e
Mice*Lice= MwCw(T1-T2)w
+MmCm(T1-T2)
Substituting our data we have
24*3.4*10^5=180*4190*(22-15)
+360*Cm*(22-15)
8160000=754200*7+2520Cm
8160000=5279400+2520Cm
8160000-5279400 =2520Cm
2880600=2520Cm
Divide both side by 2520
2880600/2520=Cm
Cm=1143.1J/kg ∙ K
Answer:
<em>0.25</em>
Explanation:
According to newtons law of motion
\sum F_x = ma
F_f = ma
nR = ma
nmg = ma
ng = a
n = a/g
g is the acceleration due to gravity
Given
a = 2.42m/s²
g = 9.8m/s²
Substitute into the formula;
n = 2.42/9.8
n = 0.25
<em>Hence the coefficient of kinetic friction is 0.25</em>
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Forces that cause a change in the motion of an object are UNBALANCED FORCES
Hope this helped:)