Students were asked to design an experiment to determine what affects the period of a pendulum. which of the following should be the dependent variable(s) for the experiment? a. the angle of the swingb. the length of the string onlyc. the mass of the bob only d. the length of the string and the mass of the bob

When you turn on a battery-operated device, an electrical circuit is

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

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.)