Tim can type 2000 words at a speed of 50 words per minute bobs typing speed is 80 words per minute how much less time did bob take than Tim to type 2000 words

What is the measure of a change in an objects 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.)

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.