A 1.6 kg bicycle wheel with a radius of 0.31 m turns at a constant angular speed of 27 rad/s when a(n) 0.33 kg reflector is at a
1 answer:
Answer:
angular speed = 25.393 rad/s
Explanation:
Given Data:
weight of bicycle wheel is 1.6 kg
radius of bicycle wheel is 0.31 m
angular speed is 27 rad/s
weight of reflector uis 0.33 kg
reflector distance from axle is 0.19 m
we know that moment of inertia between two mass is calculated as
Moment of inertia
= 0.0828
Moment of inertia I2
= 0.088
= 25.393 rad/s
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Answer:
Atlanta is at 596.0 km from the house.
Explanation:
The distance between Atlanta and the house can be found using the following equation:
(1)
Where:
v: is the speed = 80 km/h
t: is the time = 7.45 h
By solving equation (1) for d and entering the above values we have:
Therefore, Atlanta is at 596.0 km from the house.
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Answer:
Energy stored in the capacitor before the dielectric was inserted=
3.744×10-3 J
Energy stored in the capacitor after the dielectric was inserted=
14.0×10-3 J
Change in energy due to dielectric
10.3×10-3 J or 10mJ
The energy stored in the capacitor increased due to the insertion of the dielectric material.
Explanation:
The energy stored in the capacitor is calculated from the formula
U= 1/2CV^2
Where:
U=energy stored in the capacitor
C=capacitance of the capacitor
V= voltage.
The energy stored in the capacitor before the insertion of the dielectric is shown as U while the energy stored in the capacitor after the insertion of the dielectric is designated U'.
Since U'>U from the solution attached, the change in energy due to insertion of the dielectric ∆U= U'-U
Hence the answer shown. See attached image for detailed solution.
