Calculate the time taken for a capacitor to lose half of its charge when the Capacitance is 330μF and the Resistance is 150kΩ

Positrons are spontaneously emitted from the nuclei of

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.)

The movement of electrons between atoms is called an