Calculate the total heat content of 10 kg of Ice at -23°C. (Hint: A substance at absolute zero, -273° C, has O heat content.) Be mindful of significant figure rules for both multiplication and addition.
115 kcal
1400 kcal
1500 kcal
1300 kcal

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.)