Pasteur placed broth in a special type of flask that allowed air to enter and exit. then, he heated the broth and flask, so they no longer contained any bacterial cells. finally, after observing the flask for a few days and noticing that nothing grew in the flask, he was able to conclude that

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

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 are the similarities & differences between a thermistor and a light dependent resistor in physics?