Answer:
Explanation:
Using the Condition That Initial Angular Velocity is equal to final angular velocity
total angular momentum is equal to angular momentum of the person + angular Momentum of the Platform
Note L= I ×ω
Final Angular momentum of the person is equal to the final angular momentum of the platform
Final Moment of Inertia of the person I_{per.f} =
=70×(2.7)²=510.3Kgm2
Initial Angular Momentum L_{i} = Final Angular Momentum L_{f}
I_{plat.i} ×ω_{plat.i} + I_{per.i} ×ω_{per.i} = I_{plat.f} ×ω_{plat.f} + I_{per.f} ×ω_{per.f}
890(0.85) + 0 =890(ω_{plat.f}) +510.3(ω_{plat.f})
756.5 = 1400.3 (ω_{plat.f})
(ω_{plat.f}) =0.54rad/s
Yes it is consider biology
Answer:
False
Explanation:
No. The buoyant force on an object is the portion of its weight that appears to vanish
when the object is in any fluid (could be either a liquid or a gas).
If the object happens to float in a particular fluid, then the buoyant force at that moment
is equal to the object's weight.
Notice that the buoyant force on an object will be different in different fluids.
Answer:
if it were to be digital then you would be able to carry it around where ever and look at it to remind you of the memories, however it probably wouldnt last as long as the physical one. eg if you phone breaks there is a chance to restore the photo but you would had to have backed it up beforehand.
