A disk is spinning about its center and has an angular momentum of .22 kg*m^2 /sec. If the disk has a radius of 0.35 m, and an angular speed of 0.45 rad/s. What is the mass of the disk?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

What part of the ear is names after tools, such as the hammer and the anvil?