An alpha particle is made up of __ __and
ions
protons
neutrons
C electrons

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

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.)

Both independent and dependent clauses