You are designing a rotating metal flywheel that will be used to store energy. The flywheel is to be a uniform disk with a radius of 23.0 cm. Starting from rest at t = 0, the flywheel rotates with constant angular acceleration 3.00 rad/s^2 about an axis perpendicular to the flywheel at its center.
If the flywheel has a density (mass per unit volume) of 8600 kg/m^3, what thickness must it have to store 800 J of kinetic energy at t = 8.00 s?

Explanation:

Given that

Radius of disk is

r=23cm=0.23m

The disk starts from rest at t=0

Given angular acceleration

α=3rad/s²

Density of disk is p=8600kg/m³

Energy stored K.E=800J

time taken t=8s

Thickness?

Check attachment for solution

b) returns freshwater to the earth.

c) returns freshwater to the earth.c) occurs after condensation.

d) returns freshwater to the earth.c) occurs after condensation.d) roughly equal to the amount of evaporation.

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temp rises, and expansion